10 Bone-Tingling Body Facts

The human body is an immensely complex machine that works tirelessly day in and day out in the service of life. We are but an interconnected web of cells that work in concert to allow you to read this incredibly interesting article. By now, you probably think that nothing else about the human body could possibly interest you, but you would be wrong!

Check out this list of 10 bone-tingling facts about the body that you've never heard before. 

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1. All of the elements in your body are worth approximately $160. 

Potassium accounts for the largest amount, making up about $100 of the $160. 

2. When people are electrocuted, it isn't the shock that causes someone to fly backwards. 

The sudden muscle contraction that results from the shock drives the force. 

3. The urge to catch your breath under water results from the need to expel carbon dioxide rather than inhale more oxygen. 

4. Humans can hear the difference between cold and hot water pouring. 

While the reason isn't completely clear, one theory is that the higher viscosity (or "thickness") of cold water may be what our ears can pick up. 

5. One million humans pass roughly $13 million in precious metals every year through poop.

This includes metals like gold, copper, silver, as well as others. 

6. Most of the fat we lose, 84%, is exhaled as carbon dioxide. The remaining 16% is excreted in the form of bodily fluids.

7. While still under debate, some evidence suggests that blonde hair developed only 11,000 years ago as a way to promote Vitamin D absorption in parts of Northern Europe.

8. If you have trouble sleeping, some sleep experts suggest going camping for a week without your typical electronic devices. 

It may "reset" circadian rhythms that have been thrown for a loop by daily artificial light exposure.

9. All humans are covered in stripes that are invisible but sometimes are exposed as a result of certain skin conditions. 

Skin develops normally along these "Blaschko lines."

10. When we're sick, our bodies make us feel tired and weak as a way to fight an infection more efficiently.

These are known as "sickness behaviors."

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