It takes about 20 seconds for a red blood cell to circle the whole body.
102
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Yawns are more contagious among people with closer relationships.
163
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The human brain doesn't stop developing until about 25 years old.
102