1. Women’s hair is about half the diameter of men’s hair
2. Women blink twice as many times as men do.
3. Laughing lowers levels of stress hormones
4. Thinking about your muscles can make you stronger.
5. The brain is much more active at night than during the day.
6. The lifespan of a human hair is 3 to 7 years on average.
7. Acid in your stomach is strong enough to dissolve razorblades.
8. 75% of human waste is made of water.
9. Nose can remember 50,000 different scents.
10.Intelligent people have more zinc and copper in their hair.
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