It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
In one day, adult lungs move about 10,000 litres of air.
11
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The human sigh acts as a physiological reset button.
23
The human brain uses approximately as much energy as a 10 watt light bulb.
120