20 Health facts you have gotten totally wrong your whole life

1.  Organic food is pesticide-free and more nutritious.
2.  Eating food within 5 seconds of dropping it on the floor is safe.
3.  The chemical tryptophan in turkey makes you sleepy.
4.  Eating chocolate gives you acne.
5.  An apple a day keeps the doctor away. (Apples are packed with vitamin C and fiber, both of which are important to long-term health, but they aren't all you need. And if certain viruses or bacteria get into your system, an apple will unfortunately do nothing to protect you. Go ahead and get that flu shot, even if you eat apples.)
6.  Natural sugar like honey is better for you than processed sugar.
7.  Coffee stunts your growth.
8.  Eating ice cream will make your cold worse.
9.  Sugar is as addictive as heroin.
10. Sugar causes hyperactivity in children.
11. Your blood turns blue when it's out of oxygen.
12. Humans have five senses. (Sight, smell, taste, hearing, and touch are just the beginning. Don't forget about balance, temperature, and time, as well as proprioception — the body awareness that helps us not walk into things all the time — and nociception, our sense of pain.)
13. Pregnancy gives you "baby brain" and makes you dumb.
14. Humans can't grow new brain cells.
15. Everyone should drink eight glasses of water a day. (A good rule is to drink when you're thirsty — you don't need to count the glasses.)
16. Vaccines cause autism.
17. Cracking your knuckles will give you arthritis.
18. Being cold can give you a cold. (Your doctor will help explain to you that Common Cold is caused by Virus)
19. Being stressed will give you high blood pressure.
20. Humans got HIV because someone had sex with a monkey.

Source: BusinessInsider