Health

Find some great and fun health facts all gathered right here under our health category.  Once you have had your fill of fun facts about health head on over to our random fact generator to learn more random factoids!

WTF Fun Fact 13018 – Can Meditation Be Dangerous?

by

While we know various types of meditation can promote better mental and physical health, it’s easy to neglect the fact that just about anything can be dangerous if you don’t know how to do it right or aren’t prepared for it. But can meditation be dangerous?

In some cases, yes. But mostly for beginners who quit too early.

How can meditation be dangerous?

Dangerous is a loaded work, however, there are certainly some potential downsides to meditation. For those who are in a dark place or have multiple stressors that they have been repressing, harmful thoughts can sometimes arise during meditation. And if you aren’t skilled at pushing those thoughts away, it can cause you to ruminate on them even more.

According to Psychology Today (cited below), “The most profound interaction you experience in meditation is the interaction with yourself. As part of that, you would get in touch with buried and suppressed emotions. Meditation could trigger waves of anger, fear or jealousy, which had been sitting deep within you, and that would make you feel uncomfortable.”

Of course, having these emotions surface is likely good in the long term if it helps you deal with them and get past them. But if you stop meditating due to discomfort with those feelings, it can leave you worse off. (This is similar to starting and stopping therapy too soon – it can be uncomfortable at first, but that’s usually part of the process.)

The danger of being a beginner

If you’ve ever had a hard time meditating or found that you feel worse afterward, you’re not alone. But we tend to downplay the potential side effects for beginnings since there are so many potential benefits. And typically, the more you keep meditating, the better you get at it.

However, for those who have been through traumatic experiences, being left to meditate on their own with no other emotional support can be very challenging and can lead to poor mental health outcomes. You may need more than just meditation if you’re dealing with trauma.

Meditation beginners also sometimes misunderstand the idea of non-attachment and of letting their feelings go. Most techniques allow troublesome thoughts to come up and encourage you to acknowledge them and then push them away. But sometimes that can lead us to avoid truly dealing with these emotions in a way that will be productive in the long run.

While meditation seems to benefit many people, it’s not as easy as the internet makes it sound. Those dealing with trauma will probably want more personalized guidance and a support system as part of their meditation practice. — WTF fun facts

Source: “Dangers of Meditation” — Psychology Today

WTF Fun Fact 13004 – You Are More Likely To Die Around 11am

by

“Fun” fact: Because of a gene linked to our circadian rhythms, humans are more likely to die around 11am than at any other time of day.

***

In 2012, a study published in the Annals of Neurology reported on a gene variant that affects our circadian rhythms. And that variant, it seems, could also predict the time of day you will die. And that time is around 11am.

According to a write-up in The Atlantic (cited below), the study’s authors “realized through their research that there seems to be one DNA sequence that determines, essentially, how each of us relates to time itself. And data analysis — poring through 15 years’ worth of sleep and death patterns collected from subjects in an unrelated sleep study — helped them to make the realization.”

Why do we die around 11am?

A lot of this work has to do with the ways in which we are no longer beholden to a strict social schedule as we age.

Our external environment affects our inner circadian “clocks,” which regulate our bodies’ functions This includes elements like work schedules and daylight exposure. But there’s also a genetic component to the time of day we’re most active and alert.

According to another Atlantic piece on the research that studied the phenomenon: “Researchers at Beth Israel Deaconess Medical Center in Boston borrowed data that had been collected 15 years ago from a sleep study at Rush University in Chicago…First, its subjects had worn a device, called an actigraph, that provided detailed information about their sleep-wake patterns. Second, the subjects were all over the age of 65 when the study was originally done. So by the time the Harvard researchers got to them, many had passed away. They had all also agreed to donate their brains to science. Because of this, the researchers knew their precise times of death. Finally, in the course of the many physical and psychological evaluations undergone by the subjects, they had also had their DNA sequenced.”

The researchers compared data from over 500 participants, looking at genetics and the time of death. They found a piece of DNA that was linked to sleeping and waking hours.

People with a more common gene variant tended to die in the late morning, around 11am.

But this doesn’t mean 11am is a more dangerous time of day. The study participants had largely died of natural causes. So the issue is that their circadian rhythms affected their bodies in a way that late morning was the most common time for them to expire. — WTF fun facts

Source: “You Are Most Likely to Die at 11 a.m.” — The Atlantic

WTF Fun Fact 13001 – Unhappy Monday

by

Fun Fact: A 2011 study found that people tend to be so miserable on Mondays that, on average, they don’t crack a smile until 11:16 am. Do you experience an unhappy Monday?

***

If you hate Mondays, you’re not alone. People seem to find it a depressing day of the week. In fact, in 2011, the food company Marmite did a study that found people were so depressed on Monday mornings they typically didn’t smile for the first time until 11:16 am. That’s pretty late in the day for something as small as a smile!

The study by Marmite, the British food spread, also found that half of employees will be late to work, and will only log about three-and-a-half hours of productive work time.

Why are we so bummed on Mondays?

Ok, so there’s the obvious reason to hate Mondays if they signal the end of the weekend to you. That’s probably why some studies found Sunday to be pretty depressing as well.

According to HuffPost (cited below): “Yet other studies have found that it’s Sunday, not Monday, that is the most depressing day of the week. In 2009, a study by researchers at the University of Gothenburg and Institute for the Study of Labor found that Sunday is the darkest day of the week in Germany, where individuals reported the lowest level of subjective well-being.”

Americans also found Sunday to be the most depressing day.

Defeating the unhappy Monday

Well, the bad news is that there’s no magical cure for Mondays (short of winning the lottery, quitting your job, and spending the rest of your days at leisure).

The best the Marmite study could suggest was finding time on Monodays to indulge in activities you enjoy, such as shopping, watching TV, planning a trip, or eating a treat.

— WTF fun facts

Source: “Mondays Are More Depressing Than We Thought, Says Study” – HuffPost

WTF Fun Fact 12986 – Healing A Broken Heart

by

All you need is love. Well, all you need is oxytocin, really. That’s the brain’s “love hormone.” When it’s released into our bloodstream by our hypothalamus, it helps us bond with others and feel happy. And it turns out it could also be the key to healing a broken heart.

And we mean the real kind of broken heart – this hormone may be able to help cardiac health after a heart attack, at least according to a study using zebrafish and human cells.

Studying how to heal a broken heart

 Frontiers in Cell and Developmental Biology published the study, which found that oxytocin also has the ability to “promote the regeneration of the heart after an attack.”

According to IFL Science (cited below): “During a heart attack, cardiomyocytes – highly specialized cells responsible for heart contractions – die off. This can be a problem as they cannot replenish themselves.”

However, it appears that a subset of cells in the outer layer of the heart can undergo reprogramming and become something calls Epicardium-derived Progenitor Cells (EpiPCs). The cool thing about EpiPCs is that they can eventually become different types of heart cells, including the ones that are killed off during a heart attack.

Unfortunately, these EpiPCs need some help since they can’t regenerate fully under normal conditions. That’s why researchers looked at zebrafish.

Zebrafish are able to regrow parts of their heart. Naturally, scientists wanted to see just how they managed to do it so efficiently in the hopes that they could spur this regeneration in humans.

The role of oxytocin

The experiments involved injuring the hearts of zebrafish (through freezing them). Researchers found that the genetic material that leads to oxytocin production showed a 20-fold increase in the brain. This triggered a biological process that ended in some cells turning into EpiPCs and migrating to the heart to develop into cardiomyocytes.

“Here we show that oxytocin, a neuropeptide also known as the love hormone, is capable of activating heart repair mechanisms in injured hearts in zebrafish and human cell cultures, opening the door to potential new therapies for heart regeneration in humans,” lead author Dr. Aitor Aguirre said in a news release.

Now, the question is whether we can make something similar happen in humans.

It turns out it may be possible. But we’ll have to find a way to activate the production of oxytocin in order to produce EpiPCs.  

“Oxytocin is widely used in the clinic for other reasons, so repurposing for patients after heart damage is not a long stretch of the imagination. Even if heart regeneration is only partial, the benefits for patients could be enormous,” Aguirre added.

Next steps towards healing a broken heart

Now, the team will need to look at oxytocin production in humans who have experienced cardiac injuries as well as drugs that can stimulate oxytocin production. But before working on humans, it’ll have to go through a pre-clinical trial stage.

“Next, we need to look at oxytocin in humans after cardiac injury. Oxytocin itself is short-lived in the circulation, so its effects in humans might be hindered by that. Drugs specifically designed with a longer half-life or more potency might be useful in this setting. Overall, pre-clinical trials in animals and clinical trials in humans are necessary to move forward,” Aguirre concluded. — WTF fun facts

Source: “Love Hormone” Oxytocin Could Help Mend A Broken Heart” — IFL Science

WTF Fun Fact 12961 – Ride-Sharing Risks

by

We would have assumed that with fewer cars on the road, ride sharing services like Uber and Lyft would have helped decrease the number of traffic deaths. But a 2018 study from University of Chicago’s Booth School of Business, there are some unforeseen ride sharing risks. In fact, these services have contributed to a 2%-3% increase in traffic deaths.

Reporting on the risk of ride-sharing

In “The Cost of Convenience: Ridesharing and Traffic Fatalities,” authors John M. Barrios (University of Chicago), Yael V. Hochberg (Rice University), and Livia Hanyi Yi (Rice University), claim that since 2011, roughly 1,100 deaths could be attributed to ride sharing companies in the U.S.

The report (cite below) states: “The arrival of ridesharing is associated with an increase of 2-3% in the number of motor vehicle fatalities and fatal accidents. This increase is not only for vehicle occupants, but also for pedestrians.”

Why the increase in traffic deaths?

After looking at the data, the authors note a number of ride sharing risks that contribute to traffic accidents.

The biggest increases occurred in large cities, where ride sharing also put more cars on the road despite the presence of public transportation. An increase in new vehicles leads to more congestion on the streets, which is correlated with more accidents.

According to the Booth School of Business: “Evaluating the effect of ride sharing on driver quality is complicated, according to the researchers. An increase in high-quality ride-share drivers could offset increased VMT and potentially reduce accident rates; however, while some poor drivers may substitute ride sharing for driving, other passengers may be skilled drivers who simply enjoy the convenience. At the same time, lesser-quality drivers may be tempted to drive for ride-sharing services.”

The cost of the increase in accidents is estimated to be $5.33 billion to $13.24 billion per year.

Of course, there are benefits to ride sharing: “These include improved mobility for the disabled and for minorities, flexible job opportunities that are especially valuable to those otherwise at high risk of unemployment, and customer convenience and resulting consumer surplus.” — WTF fun facts

Source: “The Cost of Convenience” — University of Chicago

WTF Fun Fact 12958 – Odorless Sweat

by

Most sweat doesn’t smell. Body odor comes from the bacteria that feed on sweat in your armpits and groin only. Other perspiration is odorless sweat.

What sweat is odorless?

When most of us sweat, we can smell it. But that’s because getting sweaty means we sweat all over our bodies. However, the sweat that comes from our head, arms, back, and legs has no odor at all.

Only the perspiration from your armpits and groin produces body odor. If you use a strong antiperspirant in those areas, you can get all sweaty and not smell it.

Why does some sweat smell bad while some have odorless sweat?

According to Harvard Health (cited below):

“Your body has two main types of sweat glands — eccrine and apocrine — that release fluid (sweat) onto your skin’s surface when you’re hot. Sweat serves an important purpose. As perspiration evaporates, it cools your body temperature. Eccrine glands are all over your body. Apocrine glands are in areas like your armpits and groin. They produce a thicker, milky fluid. Sweat itself doesn’t have a smell. The odor happens when bacteria come into contact with the perspiration your apocrine glands release.”

Food and body odor

Your diet can also change the way you smell.

According to Harvard Health: “Cruciferous vegetables such as broccoli, cabbage, and cauliflower produce gas. The breakdown of garlic and onions in your body releases sulfur-like compounds that waft out through your pores. And people with a rare condition called trimethylaminuria develop a fishy odor after eating seafood.”

Odorless sweat is still more common, however.

Can you stop sweating?

Those with a medical condition such as hyperhidrosis can address excess sweating with antiperspirants, other prescriptions, and even BOTOX. There’s even a surgery that can remove your sweat glands entirely.

However, sweat helps us cool down. So unless it’s ruining your life, it’s probably better to just sweat it out. — WTF fun facts

Source: “What’s that smell? Get rid of body odor” — Harvard Health Publishing

WTF Fun Fact 12957 – The Man Who Couldn’t Stop Rhyming

by

A recent publication reports that a neuroscientist who suffered a series of strokes and seizures couldn’t stop rhyming and rapping after his recovery.

The rhyming neuroscientist

Of course, the neuroscientist’s name has been withheld to preserve his privacy, but a Feb 2022 piece in the journal Neurocase titled “The neurologist who could not stop rhyming and rapping” (cited below) says he is 55 years old.

In the abstract, author Mario Mendez states that “His strokes included right posterior cerebellar and right thalamic infarctions, and his subsequent focal-onset seizures emanated from the left frontotemporal region.

The urge to rap

The abstract goes on to describe the aftermath of his strokes:

“On recovery, he described the emergence of an irresistible urge to rhyme, even in thought and daily speech. His pronounced focus on rhyming led him to actively participate in freestyle rap and improvisation. This patient’s rhyming and rapping may have been initially facilitated by epileptiform activation of word sound associations but perpetuated as compensation for impaired cerebellar effects on timed anticipation.”

We still don’t know the underlying mechanisms that cause a person’s brain to develop linguistic dysfunctions after an injury such as a stroke. Some strokes affect the ability to speak or understand language, while others cause brain injuries with more unique symptoms. The irrepressible urge to rhyme is certainly a unique one!

Other post-stroke rappers

In 2019, The Atlantic published a piece on a 50-something man who couldn’t stop rapping after a stroke – and it’s likely the same person.

Dr. Sherman Hershfield specialized in physical medicine and rehabilitation and was in excellent health before he was plagued by blackouts and then a grand mal seizure and series of strokes. Then: “His personality also seemed to change. He suddenly became obsessed with reading and writing poetry. Soon Hershfield’s friends noticed another unusual side effect: He couldn’t stop speaking in rhyme.” — WTF fun facts

Source: “The neurologist who could not stop rhyming and rapping” — Neurocase

WTF Fun Fact 12945 – Snapchat Dysmorphia

by

If you’re over 30, you probably remember the days when getting rid of red-eye in a photo was your biggest photographic concern. Now, people have so many options that the results hardly look human. And that’s a big problem when it aids people’s body dysmorphic disorder or creates the newly-minted “Snapchat dysmorphia.”

Striving for perfection

Plenty of us are guilty of looking at an old photo and wishing we looked that good in real life. Some of us even try to use that photo as a guide for how to style ourselves in the future. But social media filters do something different to our psyches. That’s because they allow us to airbrush away the tiniest flaws, see what we look like in perfect lighting, and even allow us to snip in our waists or hips.

Once we see ourselves as we truly want to be, the effects can be a little too alluring. In fact, more and more people are getting plastic surgery to look more like their filtered selves.

According to Jessica Baron in Forbes, “[In 2018] we were introduced to the phrase “Snapchat dysmorphia” in a piece by researchers from the Department of Dermatology at Boston University’s School of Medicine. In JAMA Facial Plastic Surgery, they described the ability of Snapchat and FaceTune filters to smooth out skin and make teeth look whiter and lips look fuller as a gateway to seeing oneself in a whole new way – a way users wanted to replicate in real life.”

Things have only gotten worse since then.

Your profile pic, yourself

According to Healthline (cited below), filtering isn’t necessarily the problem: “Filtering your selfies isn’t necessarily harmful. Often, it’s nothing more than a fun exercise, like dressing up or experimenting with a new makeup style.” The problem is when we filter ourselves so heavily and so constantly that we start to get disconnected from reality (especially the reality that someone could be so flawless).

“Snapchat dysmorphia, to put it simply, happens when you compare filtered selfies to your actual appearance. When you fixate on your perceived flaws, the feelings of discontent and unhappiness that surface might lead you to wish you could alter your features to match those filtered images.”

Snapchat dysmorphia is a problem, but not yet a diagnosis

Social media use in general has long been linked to increased bodily dissatisfaction. In fact, Meta (the parent company of Facebook and Instagram) is named in 8 lawsuits accusing the company of exploiting young people for profit.

Healthline states, “Snapchat dysmorphia isn’t an official mental health diagnosis, so experts have yet to determine a standard definition, criteria, or symptoms.”

Simply filtering your selfies doesn’t qualify you for this potential future diagnosis, however. Cosmetic surgery or injections to alter your face or body are things people have been doing for decades.

The problems come in when we fixate on our appearance in selfies, feel like we can no longer be as good as our social media selves, and get preoccupied with “flaws” that only we see (such as our eye placement, forehead, lip shape, etc.).

Some people become obsessed with taking selfies and editing them. They may go back and edit old photos to alter their appearance to measure up to some perceived standard. They feel anxiety over going out without heavy makeup. Or they get defensive when others take photos. They may even feel worse about themselves the more they take and alter selfies. The problem is, they’re unable to stop.

We may find that, in a few years, there’s a mental health diagnosis that addresses this. — WTF fun facts

Source: “Snapchat Dysmorphia: Does Perfection Lie Just a Filter Away?” — Healthline

WTF Fun Fact 12936 – Evidence for the First Amputation

by

Archaeologists have found a skeleton bearing the signs of a Stone Age amputation procedure. This evidence for the first amputation (that we know of) is significant because it’s much earlier than previous evidence and the person it was performed on survived the surgery.

Is this the first amputation?

We’ll never really know of this skeleton belongs to the first person to survive an amputation since we can’t possibly know when we’ve collected every archaeological sample.

But what we do know is that the skeleton was found in a cave in Borneo (in Indonesia) and is roughly 31,000 years old! It belonged to a young adult (the gender is uncertain), possibly around the age of 19-20.

When the child was roughly 10 – 12, their left leg was amputated below the knee, and they went on to live for years as an amputee.

Prehistoric surgery

It appears the child died 6 – 9 years after the left leg amputation. That’s pretty impressive considering it was done without modern painkillers and the blood loss was probably severe.

It’s proof that there was some way of controlling the bleeding and helping the patient survive tens of thousands of years earlier than we first thought.

Proof of the amputation was discovered when researchers came across a grave and found a skeleton missing the lower part of its left leg. Because there were no bones found nearby, it was clear that the person was buried without a leg.

Upon closer inspection, researchers realized the bones had been carefully removed. Enough healing had taken place to indicate that it was an intentional surgery that took place years before the person’s death.

Because there were no signs of infection, bone crushing, or other fracturing, it’s clear that the leg wasn’t bitten off (by a crocodile, for example) or lost in an accident.

The skeletal proof

As the researchers put it in their article in Nature (cited below):

“There is no evidence of infection in the left limb, the most common complication of an open wound without antimicrobial treatment. The lack of infection further rules out the probability of animal attack, such as a crocodile bite, because an attack has a very high probability of complications from infection owing to microorganisms from the animal’s teeth entering the wound. The partial consolidation of the bone between the left tibia and fibula and complete closure of the distal end of the left fibula are consistent with late-stage amputation changes. The small size of the left tibia and fibula compared with the right suggests a childhood injury, as the bones did not continue growing. The severe bone thinning of the left tibia and fibula is also suggestive of the heavily restricted use of the left leg resulting in musculoskeletal disuse atrophy. Some thinning of the cortical margins of the right tibia suggests that TB1 was rarely ambulatory owing to the incapacitating nature of the injury to the lower left leg.”

TB1 is the name of the specimen. —WTF fun facts

Source: “Surgical amputation of a limb 31,000 years ago in Borneo” — Nature

WTF Fun Fact 12923 – Grief After Pet Loss is Profound

by

If you have a beloved pet, chances are you will suffer the grief of losing them someday. While it’s hard to think about, it’s important to know that studies have shown the grief from pet loss is much like our grief after human death, but the support systems that help us get through it aren’t always there. It’s crucial to our mental health to grieve pet loss properly.

Grieving the loss of unconditional love

We often have and receive feelings of unconditional love from our pets, and that’s something that’s very rare in the human world (and perhaps it should be since it’s important for people to have boundaries). It helps explain why losing a pet is so devastating and why a pet that has passed on is so irreplaceable.

It’s normal to feel guilt over just about every part of the process, and a lost pet that never returns means pet owners don’t even get the closure the rest of us do.

No matter how you lose your pet, the enormous grief you may feel is common and shouldn’t be treated as silly or inappropriate. Studies show that when we bury our grief, it can have effects on our mental and physical health. People have even been diagnosed with “broken heart syndrome” (which mimics the symptoms of a heart attack) after losing a pet.

Support is crucial to grief after pet loss

According to Scientific American (cited below), a support system can be a crucial part of healing, especially when a person feels otherwise alone in their grief. Feeling alone may be common even if many family members were part of a pet’s life because each individual person has their own relationship with an animal.

Without support, “we are not only robbed of invaluable support systems when our pet dies, but our own perceptions of our emotional responses are likely to add an extra layer of distress. We may feel embarrassed and even ashamed about the severity of the heartbreak we feel and, consequently, hesitate to disclose our feelings to our loved ones. That additional shame complicates the process of recovery by making it more lengthy and complex than it should be.”

Losing a pet disrupts the rhythms of our daily lives, makes our homes feel quiet and lonely and robs us of the healing effects of interacting with an animal. Requests for us to replace our pet too early feel cruel and don’t do any favors to a new “replacement” animal either (since there’s no way they can act exactly like our old pet).

The truth is, we have to feel and process our grief in order to get better, and to do that we need to feel some sense of support around us. That’s why there are now in-person and online support groups for people experiencing pet loss. — WTF fun facts

Source: “Why We Need to Take Pet Loss Seriously” — Scientific American

WTF Fun Fact 12918 – The First Dental Filling

by

You’ve probably always wondered when dental fillings started to be a thing. Because everyone loves to think about the dentist, right?

Interestingly, some people have called dentistry “the oldest profession” since archeological evidence shows people trying to treat cavities many thousands of years ago. We’re not sure about that label, but it does make us wonder why humans weren’t built with better teeth.

Dental archaeology and the first filling

The oldest dental filling dates back to at least the Neolithic period. An international team of researchers largely based in Italy published a paper in 2012 noting that they found evidence of prehistoric dentistry in the form of a 6500-year-old mandible in Slovenia with a crown made of beeswax.

Whoever this poor chap was, he was clearly in enough pain to try and find a way to lessen it by getting his chipped enamel treated.

The researchers described how they assessed the mandible (in a paper cited below): “The use of different analytical techniques, including synchrotron radiation computed micro-tomography (micro-CT), Accelerator Mass Spectrometry (AMS) radiocarbon dating, Infrared (IR) Spectroscopy and Scanning Electron Microscopy (SEM), has shown that the exposed area of dentine resulting from occlusal wear and the upper part of a vertical crack affecting enamel and dentin tissues were filled with beeswax shortly before or after the individual’s death.”

Ok, but the next question is, is it really a filling if you’re already dead? We don’t have an answer to that or a way of knowing if the person was dead or alive when it was inserted.

The researchers noted that “If the filling was done when the person was still alive, the intervention was likely aimed to relieve tooth sensitivity derived from either exposed dentine and/or the pain resulting from chewing on a cracked tooth: this would provide the earliest known direct evidence of therapeutic-palliative dental filling.”

Is dentistry the oldest profession?

Dentistry is certainly one of the oldest medical professions (even though the first dental school in the world was opened in the 1820s in Ohio) and the first formal dental text was written in the 1500s. There’s plenty of evidence (written and archaeological) to show that fixing teeth goes back a very long way.

Whether or not it’s the oldest profession (instead of, say, what we normally think of as holding that title) is something we’ll never know. But we kind of doubt it. — WTF fun facts

Source: “Beeswax as Dental Filling on a Neolithic Human Tooth” — PLoS One

WTF Fun Fact 12912 – Tons of Twins

by

There are more twins living now than ever before. Well, at least we think so. We only started recording the rate at which twins were born in the 1980s when it was about 1 in every 50 pregnancies (2%).

The rise of the twin rate

The rate at which twins were born went up to 2.5% in 1995. By 2001 it was 3%, and it rose to 3.3% in 2010.

Alexis Madrigal of The Atlantic (cited below) explained how he calculated the number of twins as of 2014: “When the CDC calculated the number through 2009, they pegged it at 865,000. Now that several years more data is available, I recalculated the number. I took the number of twins that would have been born if the 1980 twin rate had held, and subtracted it from how many twins were actually born.

The result: 1,009,337! That’s a million extra twins from 1981 through 2012, the most recent year for which data is available.”

Why so many twins?

Madrigal also reported that “A few years ago, the Centers for Disease Control researchers looked into the phenomenon.” They did so because, from an evolutionary perspective, twins are more likely to result in premature births and low birth weights – neither of which is ideal for human survival.

The reason? They can only guess, but “Older women tend to have more twins than younger women—and older women are having more of the nation’s babies. The researchers found this demographic phenomenon accounted for one-third of the increase. They attributed the rest of it to the increase in infertility treatments, specifically in-vitro fertilization and ‘ovulation stimulation medications.'”

Reproductive technology allows for multiple embryos to be implanted during IVF, and that’s common since implanting more embryos has a better chance of resulting in a successful pregnancy – of course, it also increases the chance of having twins. However, as the technology gets better, more couples are opting to have just one embryo transferred.

The “twin rate” seems to have leveled off as a result, but hasn’t reversed yet. — WTF fun facts

Source: “There Really Are So Many More Twins Now” — The Atlantic

WTF Fun Fact 12889 – Dasia Taylor’s Life-Saving Sutures

by

Anywhere from 2% to 5% of surgical incisions and other stitched-up lacerations get infected, and it can be life-threatening. That’s partly because patients may not know their wounds are infected until they see signs like redness or experience pain. Teenager Dasia Taylor has an answer – she invented sutures that turn a different color when a wound is infected.

Dasia Taylor’s suture solution

When she began the project in October 2019, Dasia Taylor was just 17 years old. The Iowa City West High School student was participating in science fairs and was eventually named one of 40 finalists in the Regeneron Science Talent Search, a highly prestigious science and math competition for high school seniors.

Her invention was a suture threat used for medical stitches that changes color from bright red to dark purple when an infection is present. She uses beet juice to make the dye. But it’s far more chemically complicated than that.

Color-changing sutures save lives

Dasia Taylor’s invention is designed in part to help people who don’t have access to convenient medical care and is based on a process already known to scientists.

According to Smithsonian Magazine (cited below): “Taylor had read about sutures coated with a conductive material that can sense the status of a wound by changes in electrical resistance, and relay that information to the smartphones or computers of patients and doctors. While these ‘smart’ sutures could help in the United States, the expensive tool might be less applicable to people in developing countries, where internet access and mobile technology is sometimes lacking.“

While less than 5% of people in the US whose wounds are treated with sutures develop an infection, that number jumps to 11% in developing countries.

Taylor is also concerned about the high rate of C-section infections in parts of Africa and the US (the US has just as high of a rate of infection – sometimes higher – than some African nations with fewer medical resources).

How do color-changing sutures work?

So, how do the sutures help notify patients of an infection? Well, according to Smithsonian: “Healthy human skin is naturally acidic, with a pH around five. But when a wound becomes infected, its pH goes up to about nine. Changes in pH can be detected without electronics; many fruits and vegetables are natural indicators that change color at different pH levels.”

“I found that beets changed color at the perfect pH point,” said Taylor. Bright red beet juice turns dark purple at a pH of nine. “That’s perfect for an infected wound. And so, I was like, ‘Oh, okay. So beets is where it’s at.’”

But that wasn’t the full solution. Taylor also had to find a material that would hold onto the dye while not being too thick to be used as a suture. She tackled the problem during the COVID lockdown and ran experiments until she found the best of the 10 materials she was trying – a cotton-polyester blend that could change color in just minutes of picking up a change in pH.

There are still some kinks to work out before it goes from the laboratory to the bedside, but it’s safe to say this teen is on her way to an illustrious research career. – WTF fun facts

Source: “This High Schooler Invented Color-Changing Sutures to Detect Infection” — Smithsonian Magazine

WTF Fun Fact 12813 – Heartbreaks Hurt

by

Breaking up hurts – and sometimes that pain is physical in addition to emotional. Research has found that people who have experienced a painful breakup actually show brain activity similar to those who are in physical pain.

Why do heartbreaks hurt?

Researchers have compared the brain activity of those going through the emotional pain od a breakup alongside people who are in physical pain. The results showed that emotional and physical pain are processed in the same part of the brain.

Of course, pain is subjective, so pain research is hard to quantify, but it does explain why breakups can hurt so bad.

We’ve long known about the mind-body connection, but this is next-level.

Physiological connections

Research by author Meghan Laslocky (cited by Healthline, below) suggests that heartbreak hurts so much “because both the sympathetic and parasympathetic activation systems are triggered simultaneously.”

Healthline explains: “The parasympatheticsystem is the part of your nervous system that handles relaxed functions like digestion and saliva production. It slows the heart rate and breathing. The sympathetic nervous system, on the other hand, gets the body ready for action. It’s the “flight or fight” response that sends hormones rushing through the body to increase heart rate, and wake up your muscles. When both are turned on simultaneously, it stands to reason that the body would experience discomfort — possibly even chest pains.”

Don’t discount emotional pain

People have had heart attacks and have even died after experiencing heartbreak. But these are extreme cases.

Still, it would be unwise to discount the pain someone is going through after a breakup of the death of a loved one. Heartbreak can lead to changes in appetite, low motivation, weight loss gain, headaches, and stomach pain.

Even worse, unlike physical pain, medicine doesn’t help heartbreak. The only real remedy is time. – WTF fun facts

Source: “What Does Heartbreak Do to Your Health?” — Healthline

WTF Fun Fact 12774 – A Tick Map for Public Health

by

Scientists believe that releasing a “tick map” each year (or as often as needed) would be a great public health strategy to allow people to ward off tick-borne diseases. Now, researchers are trying to make it happen.

Why a tick map?

From hikers to vacationers, each summer and fall people head out to new locales without quite knowing the dangers that lurk in tall grasses and forests. These days, tick-borne diseases are spreading more rapidly than ever and it’s causing some big concerns for health professionals. Some of these diseases can be debilitating, and in many cases, a bit of Deet spray just isn’t enough to avoid the danger.

Enter the tick map. If a map of locations where ticks are common (and commonly associated with particular diseases) was available ahead of time, it would not only help raise awareness of the need to avoid ticks but help people take better precautions.

Knowledge is power, after all. But simply telling people there are risks out there does not lead to enough action to stop the spread of diseases that take major resources to treat.

How does a tick map work?

A tick map would involve some predictions, so researchers are still trying to come up with the ideal way of forecasting the locations. And it’s complicated.

According to Scientific American (cited below): “Many factors, not all of them well understood by scientists, shape where and when disease-carrying tick species will thrive—and if they are likely to carry a pathogen at all. Every year people are diagnosed with and treated for tick-borne illnesses such as Lyme disease, anaplasmosis, and Rocky Mountain spotted fever. For Lyme disease alone, the annual figure is nearly half a million, according to estimates from the U.S. Centers for Disease Control and Prevention. And that number is expected to rise as many tick species continue to expand their ranges.”

The only system we have now is relying on people to know where ticks may be a problem so that they can use tick repellant, wear long sleeves, cover their ankles, and perform tick checks on themselves and their pets.

But if we had a tick map, things might be different: “If hikers, for example, have a forecast indicating that the woods they are passing through are likely to have dangerous ticks, they can take extra steps to protect themselves with bug repellent, long sleeves and tight pant cuffs. Local health care providers can make sure they are looking out for symptoms of tick-borne illnesses. Local officials can advise citizens on how to take care outside during the danger season. But making accurate predictions is complicated. Many factors, not all of them well understood by scientists, shape where and when disease-carrying tick species will thrive—and if they are likely to carry a pathogen at all.”

The other cool thing about having a tick map is that it would show when risks are low, allowing people to relax some of those protocols when they aren’t necessary.

Why is it so hard to build the map?

Risk levels can be hard to gauge, however. Ticks need humid summers, enough animal hosts, and the right habitat, for starters. They don’t like cold winters and hot, dry summers. But there’s way more that goes into creating a predictive model that’s actually useful to people, including specific tick species that carry different diseases or thrive in slightly different environments.

To add to the complexity, we’re still learning about the other kinds of flora and fauna that are abundant in tick-heavy areas, such as a specific type of acorn that one type of tiny mouse feeds on – they’re common when ticks are abundant and they’re a reservoir for Lyme disease. All of those elements need to go into the model. And to top it off, we don’t entirely understand how Lyme disease works.

At the moment, the best data we have is only for one tiny area of the country. Other areas may need different predictive models. According to SciAm, “Data collection is one piece of that puzzle, but another is a better understanding of how ticks interact with host species, both human and nonhuman, and how the arthropods act as conduits for disease.”

So, in the meantime, cover up and check for ticks after a walk in the woods!

– WTF fun facts

Source: “The Quest for a ‘Tick Map’” — Scientific American

WTF Fun Fact 12764 – Mindfulness Meditation Changes the Brain

by

We need more large-scale studies to make definitive claims, but mindfulness meditation seems to have some cool cognitive benefits. In fact, we can see on brain scans that people who practice mindfulness meditation experience changes in their brains.

Minding your thoughts

Mindfulness practice encourages people to stop and spend time noticing their thoughts and then letting go of the ones that are negative, disorganized, or aren’t serving a positive purpose. It’s designed to help us notice and control our thinking. (As opposed to most meditation practices, which center around emptying the mind of thoughts.)

The part of the brain affected by mindfulness practice is called the amygdala. This is also called the “fight or flight” center because it is linked to fear and emotional responses. Brain scans have shown that mindfulness practice helps shrink the amygdala. While that may sound like a bad thing, an overactive amygdala can be bad for concentration, mood, and emotional regulation.

Regulating the amygdala

However, mindfulness has been shown to help increase the connections between the amygdala and prefrontal cortex. That’s a good thing because those connections help us regulate our emotional responses.

We need our amygdala, we just don’t want it to be hyperactive. And when we practice mindfulness, our bodies get better at regulating those emotional responses.

While some of the effects of mindfulness have been overstated in the press, there is evidence that it can modestly increase physical health and compassion and even reduce bias in addition to negative thought patterns.

The popularity of mindfulness meditation

A U.S. survey found that the percentage of adults practicing some type of mantra-based meditation,mindfulness meditation, or spiritual meditation in the previous year tripled between 2012 and 2017 (from 4.1% to 14.2%). Even among children (4 to 17 years of age), the percentage increased from less than 1% to over 5%. These emotional regulation techniques continue to grow in popularity.

Of course, there’s a lot we still don’t know about mindfulness and meditation in general, and they’re not always the best practices for everyone.

There are also different types of mindfulness meditation to practice, each with slightly different outcomes. For example, body scanning can help reduce negative thoughts. But practices in which participants are asked to observe their thoughts can sometimes lead to more negative thinking, especially among those who have just started practicing the skill and can’t let go of those thoughts easily.

In the end, it may be best for those who are new to mindfulness and observing their thoughts to do so with guidance from a teacher or tool so that they can stay on the right track and get the most out of their mindfulness practices. –WTF fun facts

Source: “10 Things We Know About the Science of Meditation” — Mindful

WTF Fun Fact 12749 – The Invention of Kidney Dialysis

by

The development of kidney dialysis started centuries ago. Even doctors in the ancient world understood the kidneys played an important role in filtering bodily fluids. Galen’s treatise On the Natural Faculties mentioned doctors prior to his time investigating the organ and its function.

But figuring out how to replicate the filtering function of the kidneys didn’t happen until the 1800s when a Scottish chemist named Thomas Graham realized he could create a membrane to act as a filter to “clean” some bodily fluids (though he wasn’t exactly spot on about what he was filtering out).

Despite sometimes being referred to as the “Father of Dialysis,” his discoveries weren’t kidney-related. In fact, for decades, scientists were more concerned with trying to filter blood for trauma patients during surgery. That’s because they didn’t have blood banks, so when someone lost blood, they needed to preserve it for the patient but also needed a way of cleaning it up first.

Blood dialysis was performed on animals in the early 20th century, and the use of blood thinners was already in use to keep it from clotting (which is necessary if you want to put it back in the body!).

In 1924, a German doctor named Georg Haas realized the possibilities of dialysis for kidney patients. Since our kidneys are responsible for filtering out impurities, those in kidney failure need some extra help.

Haas seems to have had around six patients that used his dialysis machine, but it wasn’t quite ready for prime time yet. All of those patients died of kidney failure (possibly as a result of the dialysis not filtering adequately).

The “drum kidney” was introduced in 1945 by a Dutch doctor Willem Kolff, and because materials science was more advanced, the plastics and other materials he had at his disposal made the machine more effective for cleaning bodily fluids (and didn’t leach its own materials into patients either).

Before we get to today’s modern-day dialysis machines, there were many more people involved in the invention of dialysis – including chemists and physicians that improved upon past technology:

– Swedish chemist Nils Alwall designed a machine to both clean and drain blood
– American scientist Belding Scribner had the dialysis process uninterrupted so the body would not be severely lacking in blood during the dialysis treatment
– Michael Brescia and James Cimino found a way to make Scribner’s invention work with needles so patients didn’t need to maintain an open wound that might be prone to infection

And these are just the preliminary steps we took on our way to modern kidney dialysis!

– WTF fun facts

Source: “History of the kidney disease treatment” — St. George’s Kidney Patients Association

WTF Fun Facts 12744 – Laughter Yoga

by

Laughter yoga was first introduced by Dr. Madan Kataria, a physician in Mumbai, India, in 1995. Using research that showed laughter can have beneficial effects on physical and mental health.

Since it was introduced, it has spread all over the world and has been shown to help improve mood through the release of serotonin and dopamine, improve cardiovascular function by improving blood flow to the heart, and reduce stress by suppressing cortisol levels.

Better yet, it’s free and doesn’t require anything but feeling a little bit silly.

What is laughter yoga?

You can do laughter yoga on your own, but doing it in a group setting (even via Zoom) has been shown to have further beneficial effects as it increases feelings of belonging and reduces loneliness.

According to Healthline (cited below): “Most sessions begin with simple breathing techniques, clapping, and chanting to help people relax. For example, you may begin the class by clapping rhythmically 1-2, 1-2-3 while chanting ‘ho-ho, ha-ha-ha.'”

We tried it. It does feel totally ridiculous at first. But eventually (and especially if you’re in a group), the fake laughter leads to real laughter. And your body doesn’t seem to know the difference anyway. Nothing actually has to be funny for you to get the mental and physical benefits that laughter brings.

Studies on the health effects

In addition, Healthline cited many studies pointing to proof of the benefits of laughter yoga:

“A 2019 review found simulated laughter lowered depression rates and improved mood. The authors stated that laughter exercises require little cognition and don’t rely on subjective humor, meaning most people can easily participate (Source 1).

Other studies have shown that laughing yoga may help temporarily reduce cortisol levels and stress, improve mood and energy levels, and induce a more positive mindset. In fact, it may be as effective as aerobic exercise at reducing self-reported stress (Source 2, Source 3, Source 4, Source 5, Source 6).”

Despite all the research, more large-scale studies need to be done to confirm the benefits. But in the meantime, a little laughter yoga probably wouldn’t hurt!

Check out the video below to see how you can get started. – WTF fun facts

Source: “Laughing Yoga: What Is It and Does It Work?” — Laughter Yoga