Human thigh bones are stronger than concrete!
63
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Your heart rate can rise as much as 30% during a yawn.
69
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
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
The human brain uses approximately as much energy as a 10 watt light bulb.
120