Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A man's beard grows fastest when he anticipates sex.
239
The average person will go on a date at least 100 times before they finally marry.
33
Our brains have a negativity bias and will remember bad memories more than good ones.
15
The human brain uses approximately as much energy as a 10 watt light bulb.
120
One human hair can support 3 ounces.
191
On average a woman has 4 sexual partners in her lifetime.
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