On average, there's 100 billion neurons in the human brain.
83
If the human eye was a digital camera, it would have 576 megapixels.
25
The human sigh acts as a physiological reset button.
23
Your heart will pump about 212 million liters in its lifetime.
26
Our brains have a negativity bias and will remember bad memories more than good ones.
15
A person can live without food for about a month, but only about a week without water.
156
A man's beard grows fastest when he anticipates sex.
239