Small spiders don’t jump using muscles. Instead, they control the blood pressure in their legs like a hydraulic system to propel them upwards. – WTF Fun Facts
Source: https://asknature.org/strategy/leg-uses-hydraulics-and-muscle-flex/
blood pressure
WTF Fun Fact – Japan Vs. USA Men’s Heart Health
Despite Japanese men smoking cigarettes at double the rate of American men, having higher cholesterol levels and higher blood pressure, they still have ~30% the rate of heart disease as men in the USA. This is mainly due to their diet and weight. – WTF Fun Facts
Source: https://medium.com/the-mission/why-japanese-men-have-far-less-heart-disease-badbc3841322
