There's 100 trillion good bacteria living in your body.
17
The average human body contains enough iron to make a small nail.
50
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
In older people, memory is best early in the morning and then declines during the late afternoon.
33
Your heart pumps about 2,000 gallons of blood each day!
53
The human brain doesn't stop developing until about 25 years old.
102
Men are twice as likely to be binge drinkers than women.
87