15 Outrageous Lies People Have Believed About The Human Body For Years
by N/A, 8 years ago |
2 min read
Part of living a healthy life is knowing what's going on with your body. It's also pretty important to know what's not happening. These frequently told facts are believed far and wide, but you don't have to worry about these things, because none of them are true.
1. Toads give you warts.
Warts are caused by the Human Papilloma Virus (HPV) which can only be passed from human to human.
2. The blood in your veins is blue.
It's actually always red even when it's deoxygenated. Your veins just look blue because of light.
3. Cold weather causes a cold.
Colds are caused by rhinovirus. Cold weather can suppress autoimmunity, but it won't directly cause you to get sick.
4. You need to drink 8 glasses of water a day.
Drink water has a lot of benefits, but how much you need is entirely dependent on your activity level and body weight.
5. Cracking your knuckles will give you arthritis.
The only time you should be worried about cracking your knuckles, is if it hurts when you do it. Otherwise, all that's happening is, you're placing negative pressure on a joint and that brings in nitrogen gas.
6. Eating fat makes you fat.
There is actually a recommended amount of fat that's supposed to be in your diet. Your brain needs it to function. If you're worried about your weight, watch your calorie intake and take up a fun physical activity.
7. Your fingernails and hair will keep growing after you die.
Your fingernails and hair need glucose in order to grow, but your body don't produce that if you're not alive. Your skin does dehydrate after death, which causes it to shrink and make nails appear longer.
8. Never wake a sleepwalker.
People think that you will put a sleepwalker into shock or cause them to have a heart attack if you wake them up, but the only thing that will happen is that they might get a little scared. It's better if you just lead them back to bed.
9. You only use 10% of your brain.
We do use all of our brains. Recent studies show that we actually use a large percentage of our brains all the time, even while sleeping.
10. Sugar makes you hyper.
Sugar is not what made your kid start bouncing off the walls after his friends birthday party, he just had a lot of fun.
11. Reading in the dark hurts your eyes.
It might give you a headache, but no lasting damage is done to your eyes.
12. It takes seven years to digest gum.
Gum base can't be processed by the human body, but it is small enough to just pass through on its own.
13. You have to wait half an hour after eating before you can swim.
Noting is going to happen to you if you get out of the pool, eat a snack and jump right back in.
14. Skipping meals helps you lose weight.
Calories in - Calories out. It's that simple. That's how you lose weight. Not eating makes your energy levels low and does more harm than good.
15. You hair grows back thicker and darker after you shave.
Your hair tapers off at the end, but when you shave it, you're seeing a thicker, more blunt end of the hair against your skin.