13 Weird Human Facts

1. Laughing lowers levels of stress hormones and strengthens the immune system.

2. Six-year-olds laugh an average of 300 times a day. Adults only laugh 15 to 100 times a day.

3. The average person laughs 13 times a day.

4. Intelligent people have more zinc and copper in their hair.

5. The color blue has a calming effect on people. It causes the brain to release calming hormones.

6. If you are right handed, you will tend to chew your food on your right side. If you are left handed, you will tend to chew your food on your left side.

7. If you stop getting thirsty, you need to drink more water. For when a human body is dehydrated, its thirst mechanism shuts off.

8. The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.

9. The reason honey is so easy to digest is that it’s already been digested by a bee.

10. When you blush, the lining of your stomach also turns red.

11. The attachment of the human skin to muscles is what causes dimples.

12. The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.

13. The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.