On average, there's 100 billion neurons in the human brain.
83
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
You forget 90% of your dreams.
256
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Poor eyesight (myopia) is associated with higher IQ.
232
A man's beard grows fastest when he anticipates sex.
239
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93