It takes about 20 seconds for a red blood cell to circle the whole body.
102
Human hair and fingernails continue to grow after death.
7
On average a woman has 4 sexual partners in her lifetime.
-143
Yawns are more contagious among people with closer relationships.
163
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Babies crawl an average of 200m a day.
212
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346