21 shocking Science-Backed Health Facts

Your body is incredible. It holds every memory, gets you to where you want to go every day, and it’s your only permanent home. You may be able to do a lot of body tricks, but there are many amazing things about your body that will amaze you. Learn these science-backed health facts about your body.

21 amazing health facts about humans.

Health facts about skeleton & bones

1. In ten years, you’ll have a new skeleton.

Your skeletal system’s cells constantly regenerate and In about a decade, the bones are fully regenerated. As you age, this process slows down, but the regeneration takes longer and causes bones to become thinner.

2. Your bones are more stronger than steel.

Although most people experience broken bones at some time in their lives, bone is a strong substance. Our bones are so strong that Discover Magazine says, “ounce for an ounce, our bone is stronger than steel.” A bone is more resilient to pressure and has greater bearing strength than a steel rod of the same length. The femur is the strongest bone in the body, and can support 30 times more weight than the average person.

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21 science based facts about body that will blow your mind

Health facts about muscles

3. Your fingers have no muscles.

Every day your fingers perform many important tasks, such as opening jars and opening doors. These feats of strength should not be attributed to your fingers. With a lot of assistance from the muscles at the base of each digit and the palms of your hands, tendons and bone are responsible for any movements in your fingers.

4. The only muscle that does not join two bones is your tongue.

Every muscle in the body connects with bones at both ends. This allows it to pull and create movement. The exception is your tongue. It connects to your hyoid bone, which is part of your neck. But nothing is there on the other end.

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Health facts about your skin

5.  Every Hour, You Lose 200 Million Skin Cell. These Dead Skin Cells Can Help Reduce Air Pollution.

Your skin is growing fast. It grows fast. In just 24 hours, you can lose as many as 5 billion skin cells. About 200,000,000 per hour. Your epidermis, the top layer of your skin, is constantly working to replace these skin cells with newer ones. Your epidermis is home to 95 percent of these cells. The remaining 5 percent make melanin which gives skin its color.

The American Chemical Society states that dead skin cells can contribute to dust buildup and be beneficial. Your dead skin cells falls regularly & contain skin oils like cholesterol and squalene. Studies have shown that squalene can lower ozone levels.

Ozone is a dangerous pollutant that can cause irritation to your eyes, nose, throat, and worsen asthma symptoms. Indoor pollution levels can be reduced by as much as 15% with the help of squalene found in settled dust.

Health facts about your hair

6. Hair can have a “taste.”

Fine hairs (or cilia) line the nasal passages and lungs. They detect and remove impurities. How does it detect it? They sense bitter tastes (e.g. nicotine) and they can detect it. According to an American Association for the Advancement of Science 2009 study, these hair increase their speed of movement when they taste bitter things.

7. Your hair knows when you are sleeping.

One amazing thing hairs can do is track your sleeping patterns. Yamaguchi University researchers discovered that cell-rich hair follicles contained RNA from the “clock genes” which regulate each person’s sleeping-wake cycle. Your hair will tell you if you are late getting up or early going to bed.

8. Your hair is an environmental asset.

According to Missouri University of Science and Technology’s environmental engineers, hair absorbs the air pollutant -ozone. Scalp oils have been shown to play a significant role in this. If you are trying to improve the quality of your local air, don’t use shampoo.

health facts related to growth

9. Summer is when kids grow the fastest.

Children grow faster when the temperature rises. Although you may think that growth is slow and steady, it actually happens slowly. Doctor say that Growth spurts may be seasonal: “We don’t know why, but children seem to grow the fastest in the summer and the slowest in fall.”

10. Today’s nails are longer than ever.

It’s not your imagination if you feel that you need to trim your nails more often than you used. The University of North Carolina conducted a 2010 study that compared the growth of toenails and fingernails with two other studies, both from 70 years ago and 50 years before. It found that growth had increased by 25% in the last few decades. On an average the big toe grow by over 2mm per month, compared with 1.65mm per month in the 1930s. Researchers believe the rise in protein-rich diets as the reason for this.

11. Your memory is affected by your body position.

Bad posture can cause back pain. A 2012 Biofeedback article found that sitting & looking down makes it easier for people to remember negative memories. However, looking up makes it easier to remember positive memories.

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12. You can’t see but the humans glow.

People often talk about having a “glow”. They are actually right. visible light is actually emitted by the human body, research has shown that it’s only about 1,000 times less intense than what our eyes can see. This makes it difficult to “see”with our naked eyes.

A 2009 study published in PLOS one shows that the body glow fluctuates throughout the day. The lowest glow is seen at around 10 am and the greatest at 4 pm. This could be because the people were just about to finish their work day.

13. Stomach acid can dissolve razor blades

Yes you heard that right!

These things shouldn’t be swallowed, but it is possible that your stomach could cause serious damage to razor blades. Meridia Huron Hospital researchers tested the effects gastric juice had on metal objects. They found that within 24 hours, stomach acid reduced razor blades’ weight by 63 percent.

14. Your intestinal tract is four times longer than your body.

One of the many things you might not know about your body is that your small intestine measures 18 to 23 feet in length. This means that if you were to uncoiled it it would reach almost four times your height.

15. Your gut is your “second brain”.

It’s a common sensation that we all feel before major presentations or dates. This is because there are a lot of neurons in the gut that scientists refer to as ” second mind“. Your gut is more than just a place to digest food. It also has its own senses and reflexes. Trust your gut.

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16. This tongue print is unique.

According to a study done by Thai Moogambigai Dental College in 2016, your tongue print is just as unique as your fingerprint. A “tongue imaging-acquiring device” can track and map specific details and perform biometric scans to determine the individual’s shape and texture.

17. The liver can almost fully regrow.

The liver is resilient. It can recover its normal size even if it is reduced by up to 75 percent. According to the University of Iowa, this happens by the rapid replication of liver cells. It can reach its original size or very close in about one month.

18. The human brain has more senses than just five.

We have sight, smell and taste,touch and hearing. However, we also have proprioception (senses of space and nociception (senses of pain). You might also find “equilibrioception”, which is the sense of balance, “thermoception”, which is the sense of temperature within and around the body, and “temporal perception” which is the sense of time. The Sixth Sense may need a new title we believe.

19.  Your gut has its own nervous system.

Known as the ” second brain”, your gastrointestinal system  is commonly referred to as your gut. This is  made up of stomach, gallbladder, pancreas, liver, small intestine, colon and rectumt. The gut is the only organ that has its own nervous system. It contains 100 million neurons on its wall. Consider neurons the messengers in your nervous system. They communicate information throughout your body to nerve cells, muscles, and gland cells.

20. If laid flat, your veins, capillaries, and arteries would stretch over 60,000 miles.

Although each organ of your body is amazing in itself, one of the most shocking health facts is about your veins, arteries. Our heart pumps blood through the circulatory system. Your circulatory system is made up of blood vessels known as arteries, capillaries, and veins. These blood vessels transport blood to all parts of your body. Arteries take oxygenated blood from the heart, while veins carry blood back and capillaries link them.

If you laid out the vast network of blood vessels starting at an average child, it would stretch for more than 60,000 miles . They would cover almost 100,000 miles for an average adult. Nearly 80 percent of that length would be made up by your capillaries. These are your smallest blood vessels.

The Earth’s circumference measures approximately 25,000 miles. This means that the Earth’s circumference could be covered many times by the blood vessels of one individual.

21.  Gut Bacteria can affect your mood.

Your gut can do amazing things. But did you know that it can also affect your mental health? microbiome is a collection of many bacteria found in your gut. This bacteria collection can have a impact on neural development, brain chemistry and emotional responses, as well as stress perception and pain perception.

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22. Brain shrinks during pregnancy.

In a 2017 study, published in the journal Nature Neuroscience, pregnant women experienced a reduction in the cortical thickness and surface area in grey matter sections of the brain. Grey matter is lost mainly in the cerebral cortex. This includes areas that affect social cognition and where people process their feelings and other nonverbal signals. This loss of volume does not have a negative impact, but it improves brain’s ability and efficiency to handle social situations, particularly when it comes to interpreting the needs and emotions of babies.

This fosters mother-infant bonding and facilitates a mother’s ability recognize her child’s needs and process social stimuli faster that could pose a threat to her child.

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