The pupils of human eyes are at their largest as an adolescent and then slowly shrink until about the age of 60.
shrink
lack of sleep can affect the size of your brain
Lack of sleep can affect the size of your brain – WTF fun facts
The pupils of human eyes are at their largest as an adolescent and then slowly shrink until about the age of 60.
Lack of sleep can affect the size of your brain – WTF fun facts