A man's beard grows fastest when he anticipates sex.
239
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
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
If the human eye was a digital camera, it would have 576 megapixels.
25
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
All 13 minerals necessary for human life can be found in alcohol beverages.
282
The human brain doesn't stop developing until about 25 years old.
102
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15