The human eye blinks an average of 4,200,000 times a year.
233
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Our brains have a negativity bias and will remember bad memories more than good ones.
15
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Pain occurs when sounds are above 130 db.
124
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118