Every human spent about half an hour as a single cell.
144
Obsessive nose picking is called Rhinotillexomania.
101
The human brain doesn't stop developing until about 25 years old.
102
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Mushrooms are more closely related to humans than they are to plants.
47
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132