The human body. It doesn't matter where you're from or what color your skin is – we all have one. Although they look different on the outside, the same things are happening on and under our skin. However, all this similarity doesn't mean our bodies are boring! While most of us can recall a few facts from high school anatomy and biology, most are unaware of the radical systems and abilities of the human body.
For instance, what if I told you that you have a colony of mites living on your face at this very moment? Or that your large backside is actually good for your health? Do you have any clue just how many train cars worth of blood the body pumps in your lifetime? Some of these facts are a little gross, others astonishing, but all 30 of them are evidence of just how incredible homo sapiens truly are.
And, how alike. Me, you, the Queen of England, that kid down the block that delivers your newspaper – we have a lot more in common than you might have realized.
1. The human body contains enough iron to make a three-inch long metal nail.
2. Feeling stressed or anxious? Calming music is said to lower heart rate and decrease tension, while upbeat music speeds pulse up.
3. The heart has its very own electrical system, which allows it to continue beating after it's been removed from the body. As long as there's an oxygen supply, it will keep pumping.
4. On an average day, the heart produces enough energy to power a truck for 20 miles.
5. Sweat stinks, right? Wrong. Body odor occurs when sweat mixes with bacteria already living on your skin.
6. If your eye was a digital camera, it would boast 576 megapixels – that translates to roughly $3,000 of Canon equipment.
7. There are over 200 bones in your body – and ¼ of those are in your feet! Foot bones that are not properly aligned can have detrimental effects to the rest of the body.
8. Female hearts beat faster than males, despite being smaller in size. While an average woman's heart weighs around 118 grams, a man's can weigh up to 60 grams more.
9. In your lifetime, you'll produce enough saliva to fill two swimming pools.
10. Did you know that at this very moment you're shedding? Adult humans shed up to 600,000 particles of skin every hour, or 1.5 pounds per year. And we thought our dogs were bad …
11. You know that moment in cartoons when someone gets an idea and a light bulb appears over their head? Turns out, that's not so far-fetched after all. When awake, an adult brain produces enough electricity to power a small light bulb.
12. The human nose can remember up to 50,000 scents. Just hearing phrases like “new car,” “bookstore,” or “grandma's house” can awaken your memory.
13. Average adults excrete up to 1.42 liters of urine per day.
14. Tiny mites known as demodex live in the hair follicles of our eyelashes, eyebrows, and nose hairs. They don't like light, but when it's dark, they leave the follicles to explore the skin of your face. I know, I know, it sounds like a bad science fiction movie, but these little guys are super important – they eat dead skin cells and oil and help keep you blemish-free. Thanks, demodex!
15. The strongest muscle in the body is the masseter, otherwise known as the jaw muscle.
16. “If you shave, the hair will grow back thicker and darker!” We've all heard this a hundred times, but there's actually no scientific evidence to support the claim.
17. Not getting enough sleep can be detrimental to your health, and even reduce your life expectancy. Click here to see if you are getting enough sleep for your age.
18. The cartilage in our ears and noses never stops growing. It's not your imagination – Grandpa really does have big ears.
19. In an average lifespan, the heart pumps enough blood to fill 200 train cars.
20. Adults have only 206 bones, while babies have 270. What happened to those 64 bones? By puberty, they have fused with their neighbors. “Growing pains” isn't just a saying!
21. 75 – 90% of the dust in your home comes from dead skin cells. If that doesn't make you want to break out the vacuum, I don't know what will ...
22. It's said that women with large bottoms have a higher resistance to chronic illnesses. This doesn't mean you should try to increase the size of your bottom, however – you can be just as a healthy at a thinner weight. Although women often feel pressure to be a certain size, our bodies are all different, and can be healthiest at very different weights. Just look at Marilyn rocking the size 12!
23. Your brain keeps developing well into your 40s. Keep it limber by doing plenty of reading and problem-solving.
24. The “tongue print” is just as unique as a fingerprint.
25. There are 100,000 miles of blood vessels in an adult human body. End to end, they could stretch from Virginia to California 33 times.
26. Your eye can detect up to 10 million different colors. Finding the words to describe them is up to you.
27. The brain uses 20% of the body's oxygen and blood supply, daily.
28. There are 7 octillion atoms in each and every human. That's a 7 followed by 27 zeros, which looks like this: 7,000,000,000,000,000,000,000,000,000. That's right, we typed it so you don't have to.
29. With training and exercise, some people are able to hold their breath for several minutes at a time. It takes years of practice and isn't something that should be tried at home.
30. Our body uses up to 200 muscles each and every time we take a step. Walking is definitely a form of exercise!