When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Men are twice as likely to be binge drinkers than women.
87
Your heart will pump about 212 million liters in its lifetime.
26
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
There's 100 trillion good bacteria living in your body.
17
Your body is creating and killing 15 million red blood cells per second!
14
Bearing a male child can alter a woman's brain by leaving male DNA that can persist for the rest of her life, making her less likely to suffer from Alzheimer's disease, promote tissue repair, and improve her immune system.
16