It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
Banging your head against a wall uses 150 calories an hour.
57
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
The human brain uses approximately as much energy as a 10 watt light bulb.
120
It takes 17 muscles to smile, 43 to frown.
65
Enamel is hardest substance in the human body.
61
