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HEALTH UPDATE: 20 Amazing Facts You Never know About Your Body.

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Slide 1 of 21: You probably think you know your body pretty well. After all, you’re the one who feeds it, nurtures it, gazes at it in the mirror, and uses it to walk through this world. But did you have any idea that it has the power to digest metal? Or that every time you blink you’re taking a tiny nap? Or that your pinky is your strongest finger? It’s all true! So read on, and revel in all of the amazing things that you never knew your body could do. And for some undeniable ways of improving your body, here are 100 Ways to Live to 100.
You probably think you know your body pretty well. After all, you’re the one who feeds it, nurtures it, gazes at it in the mirror, and uses it to walk through this world. But did you have any idea that it has the power to digest metal? Or that every time you blink you’re taking a tiny nap? Or that your pinky is your strongest finger? It’s all true! So read on, and revel in all of the amazing things that you never knew your body could do. And for some undeniable ways of improving your body, here are 100 Ways to Live to 100.

1. A Blink is a Micronap

Slide 2 of 21: You probably thought that a blink was just something you did to keep your eyes moist or keep dust out of them. That is a very valuable service, of course, but we actually blink way more than needed for that alone—about 15–20 times per minute. In fact, closing our eyes briefly has been found to help us sharpen our attention and serves as a miniature recharge. And for more on boosting your brain power, here are 20 Simple Ways to Improve Your Memory.
You probably thought that a blink was just something you did to keep your eyes moist or keep dust out of them. That is a very valuable service, of course, but we actually blink way more than needed for that alone—about 15–20 times per minute. In fact, closing our eyes briefly has been found to help us sharpen our attention and serves as a miniature recharge. And for more on boosting your brain power, here are 20 Simple Ways to Improve Your Memory.

2. Big Eyes Cause Nearsightedness

Slide 3 of 21: Big eyes may be considered beautiful by some, but they can cause nearsightedness. Also known as myopia, this condition that causes distant objects to look blurry is caused by light not properly reaching the retina. If your eyeball grows too long, light is focused too soon, before it hits the retina—so when it does hit the retina the image is blurry. And for more great trivia, here are 20 Crazy Facts That Will Blow Your Mind.
Big eyes may be considered beautiful by some, but they can cause nearsightedness. Also known as myopia, this condition that causes distant objects to look blurry is caused by light not properly reaching the retina. If your eyeball grows too long, light is focused too soon, before it hits the retina—so when it does hit the retina the image is blurry. And for more great trivia, here are 20 Crazy Facts That Will Blow Your Mind.

3. Hair Can Taste

Slide 4 of 21: Our nasal passages and lungs are lined with fine hairs, or cilia, that detect and sweep out impurities. How do they detect it? By sensing bitter tastes of the things passing through them—such as nicotine. When these hairs taste something bitter, they increase their rate of movement, attempting to sweep out the bad stuff. And for more surprising trivia, here are 50 Awesome Facts About Everything.
Our nasal passages and lungs are lined with fine hairs, or cilia, that detect and sweep out impurities. How do they detect it? By sensing bitter tastes of the things passing through them—such as nicotine. When these hairs taste something bitter, they increase their rate of movement, attempting to sweep out the bad stuff. And for more surprising trivia, here are 50 Awesome Facts About Everything.

4. Hair Knows When You Sleep

Slide 5 of 21: Another crazy thing that hairs can do: track your sleeping patterns. Researchers have found that our cell-rich hair follicles contain RNA from “clock genes” that express each person’s sleep-wake cycle. If you get up late or go to bed early, your hair will show it. And for more on getting your best night’s rest, Eating This One Thing Will Help You Sleep Better.
Another crazy thing that hairs can do: track your sleeping patterns. Researchers have found that our cell-rich hair follicles contain RNA from “clock genes” that express each person’s sleep-wake cycle. If you get up late or go to bed early, your hair will show it. And for more on getting your best night’s rest, Eating This One Thing Will Help You Sleep Better.

5. Your Hair Helps the Environment

Slide 6 of 21: Dirty hair can be good for the atmosphere: according to environmental engineers at the Missouri University of Science and Technology, hair absorbs the air pollutant ozone. Scalp oils were found to be a major contributor to this—so if you want to do your part to help your local air quality, skip the shampoo.
Dirty hair can be good for the atmosphere: according to environmental engineers at the Missouri University of Science and Technology, hair absorbs the air pollutant ozone. Scalp oils were found to be a major contributor to this—so if you want to do your part to help your local air quality, skip the shampoo.

6. Your Feet Contain a Quarter of Your Bones

Slide 7 of 21: Human feet contain 52 bones—26 for each foot. That’s nearly one-fourth of all the bones in your whole body. Each also contains 33 joints and more than 100 muscles, tendons, and ligaments.
Human feet contain 52 bones—26 for each foot. That’s nearly one-fourth of all the bones in your whole body. Each also contains 33 joints and more than 100 muscles, tendons, and ligaments.

7. Stomach Acid Dissolves Razor Blades

Slide 8 of 21: You probably shouldn’t be swallowing these things, but you might be surprised to learn that your stomach could do some serious damage on razor blades if you did. Researchers tested the effects of gastric juice on metal objects and found that over 24 hours, the stomach acid reduced razor blades to 63 percent of their original weight (pennies and batteries, however, were barely affected). And for more great trivia, here are 20 Present-Day Facts No One Could Have Predicted Five Years Ago.
You probably shouldn’t be swallowing these things, but you might be surprised to learn that your stomach could do some serious damage on razor blades if you did. Researchers tested the effects of gastric juice on metal objects and found that over 24 hours, the stomach acid reduced razor blades to 63 percent of their original weight (pennies and batteries, however, were barely affected). And for more great trivia, here are 20 Present-Day Facts No One Could Have Predicted Five Years Ago.

“8”. Sneezes Can Travel Up to 20 Feet

Slide 9 of 21: While some fanciful trivia sites will put that number at over 100 miles per hour, the reality is a little less speedy. Researchers at Alberta Provincial Laboratory for Public Health in Edmonton used high-speed cameras to measure the speed of sneezes in test subjects. They found they reached a high of about 4.5 meters per second, or 10 miles per hour—about the same velocity as a cough. For more facts on common sicknesses, check out 7 Cold and Flu Myths Busted.
You may think you’re safe when the guy all the way across the subway car sneezes, but you may be in the line of fire and not even know it. A video study conducted by researchers at MIT found that sneezes travel much farther than previously believed—as far as 20 feet. And for more facts on the spread of germs, check out 7 Cold and Flu Myths Busted.

9. Earwax is Good for You

Slide 10 of 21: Not to eat! But that annoying stuff you’re using Q-tips to remove serves the important purpose of lubricating, cleaning, and protecting your ears from infection. It’s as much as 50 percent fat, coating the ear and catching dust and debris—keeping your ears healthy, even if it looks gross.
Not to eat! But that annoying stuff you’re using Q-tips to remove serves the important purpose of lubricating, cleaning, and protecting your ears from infection. It’s as much as 50 percent fat, coating the ear and catching dust and debris—keeping your ears healthy, even if it looks gross.

10. You Lose Almost One-Third of Your Bones as You Age

Slide 11 of 21: You are born with about 300 bones, but as you grow, some of these fuse together as cartilage ossifies, eventually giving you 206 bones by the time your growing has stopped and you have reached young adulthood. This is one of the 40 Ways Your Body Changes After 40.
You are born with about 300 bones, but as you grow, some of these fuse together as cartilage ossifies, eventually giving you 206 bones by the time your growing has stopped and you have reached young adulthood. This is one of the 40 Ways Your Body Changes After 40.

11. You Can’t Tickle Yourself

Slide 12 of 21: The reason for this is due to your cerebellum—the area in the back of your brain that monitors movement—which predicts the sensation you will feel when you attempt to tickle yourself, countering the response that the tickle would otherwise elicit in other parts of your brain.“Two brain regions are involved in processing how tickling feels. The somatosensory cortex processes touch and the anterior cingulate cortex processes pleasant information,” Sarah-Jayne Blakemore, a research fellow at the Institute of Cognitive Neuroscience at University College London, explained to Scientific American. “We found that both these regions are less active during self-tickling than they are during tickling performed by someone else, which helps to explains why it doesn’t feel tickly and pleasant when you tickle yourself.”
The reason for this is due to your cerebellum—the area in the back of your brain that monitors movement—which predicts the sensation you will feel when you attempt to tickle yourself, countering the response that the tickle would otherwise elicit in other parts of your brain.“Two brain regions are involved in processing how tickling feels. The somatosensory cortex processes touch and the anterior cingulate cortex processes pleasant information,” Sarah-Jayne Blakemore, a research fellow at the Institute of Cognitive Neuroscience at University College London, explained to Scientific American. “We found that both these regions are less active during self-tickling than they are during tickling performed by someone else, which helps to explains why it doesn’t feel tickly and pleasant when you tickle yourself.”

12. Our Nails Grow Faster Than They Used to

Slide 13 of 21: If you feel like you’re having to trim your nails more than you use to, you might not be wrong. A study by the University of North Carolina comparing the growth of finger- and toenails to two previous studies from 70 and 50 years earlier, found that growth had increased by almost a quarter over the decades. For example, the big toe was found to grow by more than 2mm per month, compared to 1.65mm per month in the 1930s. The reason, according to researchers? Our protein-rich diet.
If you feel like you’re having to trim your nails more than you use to, you might not be wrong. A study by the University of North Carolina comparing the growth of finger- and toenails to two previous studies from 70 and 50 years earlier, found that growth had increased by almost a quarter over the decades. For example, the big toe was found to grow by more than 2mm per month, compared to 1.65mm per month in the 1930s. The reason, according to researchers? Our protein-rich diet.

13. Our Taste Buds Dull as We Age

Slide 14 of 21: Wine may taste better as it ages, but as we age, it’s harder for us to appreciate it. Just as hearing and vision tend to deplete as the years go by, our sense of taste does the same. As you get older, your taste buds regenerate more slowly after injury or if you take certain medications. And bad news for the ladies: Women generally experience a decrease in their taste sensitivity beginning in their 50s, while men don’t experience that until their 60s.
Wine may taste better as it ages, but as we age, it’s harder for us to appreciate it. Just as hearing and vision tend to deplete as the years go by, our sense of taste does the same. As you get older, your taste buds regenerate more slowly after injury or if you take certain medications. And bad news for the ladies: Women generally experience a decrease in their taste sensitivity beginning in their 50s, while men don’t experience that until their 60s.

14. We Have Unique Tongue Prints

Slide 15 of 21: Just as your fingerprint is uniquely you, so too is your tongue print. Biometric scans can be done to compare the individual shape (long or short, wide or narrow) and texture (ridges, wrinkles, and marks), with specific details tracked and mapped by a “tongue image-acquiring device.” Of course, while it might be interesting, it probably is not very useful to forensic investigators.
Just as your fingerprint is uniquely you, so too is your tongue print. Biometric scans can be done to compare the individual shape (long or short, wide or narrow) and texture (ridges, wrinkles, and marks), with specific details tracked and mapped by a “tongue image-acquiring device.” Of course, while it might be interesting, it probably is not very useful to forensic investigators.

15. Humans Are the Only Animals That Weep

Slide 16 of 21: While many animals produce tears as lubricants for their eyes, humans are the only ones who cry as an emotional response. Dr. Thomas Dixon, director of the Centre for the History of Emotions at Queen Mary, University of London, suggested that tears serve a social purpose for humans and that, “Even for those who think they really are just weeping for nobody apart from themselves, it’s still a sort of performance. You’re showing yourself things have really got bad, or whatever it might be.”
While many animals produce tears as lubricants for their eyes, humans are the only ones who cry as an emotional response. Dr. Thomas Dixon, director of the Centre for the History of Emotions at Queen Mary, University of London, suggested that tears serve a social purpose for humans and that, “Even for those who think they really are just weeping for nobody apart from themselves, it’s still a sort of performance. You’re showing yourself things have really got bad, or whatever it might be.”

16. Your Rear is Your Largest Muscle

Slide 17 of 21: While there is some debate about which of your muscles is the strongest, your gluteus maximus happens to be your largest. These muscles, which help keep your body upright and move your hips and thighs have to work against gravity when you’re walking uphill or up stairs—and provide comfortable padding when you sit.
While there is some debate about which of your muscles is the strongest, your gluteus maximus happens to be your largest. These muscles, which help keep your body upright and move your hips and thighs have to work against gravity when you’re walking uphill or up stairs—and provide comfortable padding when you sit.

17. Half Your Hand Strength is in Your Pinkie

Slide 18 of 21: The pinkie seems unassuming, but it’s crucial for your hand strength—helping the thumb to pinch and giving more power to the ring, middle, and index fingers. Laurie Rogers, hand therapist at National Rehabilitation Hospital in Washington, told the New York Times that losing your pinkie would mean, “You’d lose 50 percent of your hand strength, easily.”
The pinkie seems unassuming, but it’s crucial for your hand strength—helping the thumb to pinch and giving more power to the ring, middle, and index fingers. Laurie Rogers, hand therapist at National Rehabilitation Hospital in Washington, told the New York Times that losing your pinkie would mean, “You’d lose 50 percent of your hand strength, easily.”

18. Your Intestine is Four Times as Long as You Are

Slide 19 of 21: A small intestine is about 18 to 23 feet long, meaning if you uncoiled it, it would stretch to almost four times the length of your own body.
A small intestine is about 18 to 23 feet long, meaning if you uncoiled it, it would stretch to almost four times the length of your own body.

19. We Have More Than Five Senses

Slide 20 of 21: Potentially many more, actually. While we have sight, smell, touch, taste, and hearing, humans also have “proprioception” (sense of space) and “nociception” (sense of pain). There’s also “equilibrioception” (sense of balance), “thermoception” (sense of temperature in and around the body), “temporal perception” (sense of time), and more, depending on who you ask. So The Sixth Sense might need a new title.
Potentially many more, actually. While we have sight, smell, touch, taste, and hearing, humans also have “proprioception” (sense of space) and “nociception” (sense of pain). There’s also “equilibrioception” (sense of balance), “thermoception” (sense of temperature in and around the body), “temporal perception” (sense of time), and more, depending on who you ask. So The Sixth Sense might need a new title.

20. Your Body Position Affects Your Memory

Slide 21 of 21: Researchers have found that sitting and looking downward will make it easier to recall negative memories while sitting upright and looking upward makes it easier to recall positive, empowering memories. And for some great ways to stay positive, here are the 25 Best Instant Mood Boosters!To discover more amazing secrets about living your best life, click here to sign up for our FREE daily newsletter!
Researchers have found that sitting and looking downward will make it easier to recall negative memories while sitting upright and looking upward makes it easier to recall positive, empowering memories. And for some great ways to stay positive, here are the 25 Best Instant Mood Boosters! To discover more amazing secrets about living your best life, click here to sign up for our FREE daily newsletter! And health line.

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