6 Facts you May Don’t Know About the Human Body

From digestion to breathing to creating memories, to the skin healing itself, your body is one magnificent complex machine that does more than you think. But, how many times have you stopped to consider how extraordinary your body really is? Here are surprising facts about your body that you didn’t know. These facts will make you appreciate your body more, and stop taking it for granted.

Cracking Knuckles

When you’re anxious, deep in thoughts, or stressed, you may find that you crack your knuckles quite a lot. Have you ever wondered what makes that sound? Turns out, it’s the sound of bubbles popping in your joints.

And it’s not just in your knuckles. The cracking sound can be heard on your neck, back, and other joints in the body. While cracking a joint or two is not harmful, doing it a lot can hurt ligaments that surround the joint. So, the next time you’re stressed out or anxious, turn to popping bubble wrap instead

Sweat Is Actually Odorless

When you sweat, you emit a distinct smell that makes you feel like you just want to take a hot shower. If you thought it’s your sweat that smells, you’re in for a shock. Sweat, in itself, doesn’t smell bad, but the waste that you’re removing is what releases the body odor that you’re smelling. Scientists say that when you sweat, the skin bacteria feed on sweat, causing the stinky sweaty smell. No matter what type or amount of antiperspirant or deodorant you use, sweating will still occur. But, depending on how the deodorant interacts with your sweat, your body odor might change.

Your Brain Is Bigger Than It Looks

The brain is one wrinkly organ that, if spread out, would be equivalent to the size of eight pillows! In early pregnancy, the neurons develop at an alarming rate of 250,000 per minute. And within the first year, the human brain triples in size. At two years, a baby will have an 80 percent fully grown brain. The brain continues to grow until you turn 18. At 25, the brain reaches its full maturity. For the average adult, the brain weighs around three pounds – the cerebrum makes up 85 percent of the brain’s weight, and the brain makes up around two percent of a human’s body. Get this: when awake, the human brain can generate about 23 watts of power.

Holding Your Breath Can Help Stop Hiccups

How do hiccups happen? When the diaphragm contracts involuntarily, it forces a quick intake of breath that’s suddenly stopped by the epiglottis (flap of cartilage), which is located in the throat behind the tongue. The closure is what triggers the hiccup sound. Hiccups can be embarrassing and, sometimes, even painful. Some people take a sip of cold water to help stop the hiccups. Holding your breath is also said to help stop hiccups. When you don’t exhale, the build-up of carbon dioxide in your body may stop the diaphragm from spasming, which results in hiccups.

Your Body May Forecast the Weather

You may have noticed that when cold weather is about to set in, people may start developing achy joints. Researchers at Tufts University discovered that every 10-degree drop in temperature caused a slight increase in osteoarthritic knee pain. This atmospheric pressure drop right before bad weather causes a shift in the body tissue, which can result in swelling and pain. For a normal person, the effect might be small. But people with arthritis or inflamed joints may feel the shift.

Motion Sickness Is Triggered by Your Insides Actually Shifting

The thrill of roller coasters can make you feel sick to the stomach. When the roller coaster comes over the top, slows down for a second to instill fear, before plummeting downwards at insane speeds, the seat belt keeps your rear in place. But, your loosely connected internal organs like the stomach and intestines move slightly due to the change in body inclination. While everything eventually returns to its original place, your body detects the movement and registers as though your gut moved to your throat, hence the motion sickness.

Bonus Facts:

  • When you smile, your body activates 17 muscles of the face. Crying, on the other hand, activates 43 muscles. So, keep smiling and cry less.
  • 100,000 chemical reactions are occurring every second in our brains.
  • A normal human heart beats around 35 million times a year!
  • Scientists say that over just one day, the blood runs (circulates) a distance of 19,312 kilometers.

All images by Shutterstock


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