An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Yawns are more contagious among people with closer relationships.
163
The human eye blinks an average of 4,200,000 times a year.
233
A man's beard grows fastest when he anticipates sex.
239
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118