The world's shortest man measures only 21.5 inches.
73
Mushrooms are more closely related to humans than they are to plants.
47
The human brain uses approximately as much energy as a 10 watt light bulb.
120
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
Babies crawl an average of 200m a day.
212
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Our brains have a negativity bias and will remember bad memories more than good ones.
15
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515