The human brain is more active during sleep than during the day.
28
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
The human brain doesn't stop developing until about 25 years old.
102
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
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