Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The average person will go on a date at least 100 times before they finally marry.
33
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The human brain has the capacity to store everything that you experience.
4k
It takes about 20 seconds for a red blood cell to circle the whole body.
102
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
A man's beard grows fastest when he anticipates sex.
239
A person can live without food for about a month, but only about a week without water.
156