Many secrets are hidden in our body. For example, we’re sure you’ve ever wondered why people get hiccups or how many mosquitoes it takes to drink a person’s blood. Many of these weird body facts have scientific basis. From unknown facts about your nails to never-before-seen studies about your skin, here are 25 weird facts about the human body you probably didn’t know.
Weird Facts About Human Nails
1. Fingernails grow faster than toenails
Fingernails grow faster because they are exposed to sunlight more often. Also, the nails of the working hand grow faster than those of the non-working hand, and the middle finger always has the longest nail. Also, the longer the nails of a finger, the bigger the finger, but no one understands why.
Strange facts about emotions
2. Botox deprives a person of emotions
Botox injections paralyze the muscles of the face, allowing wrinkles to disappear. However, scientists have recently discovered an intriguing side effect of these injections: the inability to fully feel an emotion. The emotional state is directly affected by facial expression. A person whose ability to express their emotions is limited therefore has fewer feelings than people who do not use botox.
3. Babies don’t shed tears until they’re a month old.
According to several medical professionals, it is completely normal for babies not to cry or to cry without tears for one to three months after birth because their tear ducts continue to grow even after birth. In some newborns, the tear ducts are blocked, which means they can cry, but the tears do not flow normally. However, a sticky yellow discharge from accumulated tears can be treated with drops or ointment suggested by your pediatrician. He will also show you how to wipe your baby’s eyes and, if necessary, how to massage the tear duct.
Weird facts about bones and muscle mass
4. Men have about 50% more muscle mass than women
Researchers used magnetic resonance imaging to assess skeletal muscle mass and distribution in a sample of 468 men and women in one of the oldest but most comprehensive surveys, published in a 1985 edition of the Journal of Applied Physiology. The research claimed that men had significantly more muscle mass, and the gender difference was most pronounced in the upper body.
5. Your femur can withstand a force of several thousand pounds.
The femur, located in the upper part of the leg, is the longest bone in the body. Because of this, it can withstand hundreds of pounds of force and is incredibly hard to break. The femur can support 30 times the weight of your body! The majority of femur fractures are due to catastrophic automobile collisions or falls from great heights, which can cause sufficient force to break the bone.
6. A baby is born with about 300 bones.
A baby’s body has about 300 bones at birth, but adults only have 206. The baby’s bones eventually fuse (grow together). Some of the baby’s bones are made entirely of cartilage. Other bones in the baby are partially covered with cartilage.
Weird facts about skin
7. Tattoos don’t live on your skin.
Have you ever wondered why it is so difficult to remove permanent tattoos? Because they are not on your skin. Rather, they are found in your immune system. When lasers are used, they kill cells, and macrophages arrive to consume the released ink and repair the injury caused by the laser. Thanks to this, the tattoo begins to fade after a few removal sessions.
8. Every minute you shed over 30,000 dead skin cells
You might be a little disgusted when you learn where those 30,000 dead skin cells go and how many you lose every day. Your skin is made up of many layers. The epidermis is the visible layer of the skin. It is made up of keratin cells, the same ones that make up your hair and nails.
9. The surface of a skin is renewed every month
The epidermis, or the top layer of skin, is made up of cells that are constantly replacing themselves. The exfoliation (moulting) of the epidermis is the basis of this rejuvenation process. On the other hand, the dermis, or the deeper layers of the skin, does not undergo this cell renewal and therefore does not renew itself.
Weird facts about the mouth
10. Your mother is impacting the bacteria in your mouth. There are at least 700 different species of bacteria in your mouth, the so-called “human oral microbiome” The composition of a baby’s oral microbiome at birth is primarily dictated by the oral health of the mother, because any oral disorder she suffered from (including gum disease) may have brought microorganisms into the baby’s mouth. Most of these bacteria, on the other hand, are beneficial to oral health.
11. Molecules bind together to detect taste on the tongue
A taste receptor is a biological receptor that helps recognize taste. For example, food and other chemicals interact with saliva and bind to taste receptors in the oral cavity and elsewhere when they enter the mouth. “sapid” molecules are those that produce a taste experience.
12. A lifetime of saliva can fill 1 swimming pool.
The few drops of saliva you produce daily can add up to 20,000 liters, which is enough to fill 500 bathtubs or two full swimming pools. Every day you can therefore fill up to 6 cups with your saliva.
Strange facts about the brain and nerves
13. The human brain is able to control emotions, memories, thoughts, breathing, etc.
The brain is a three-pound organ that governs all functions of the body, interprets information from the outside world, and embodies the essence of mind and soul. Our five senses – taste, touch, sight, smell and hearing – all simultaneously provide information to the brain. This assembles the messages in a way that makes sense to us and can store the data in our memory.
14. A neuron can connect up to 10,000 other neurons
When the membrane potential of neurons exceeds a precisely defined voltage threshold, the signal impulse (i.e. action potential) is triggered and transmitted to other neurons. A synapse is a structure in the nervous system that allows a neuron to send an electrical or chemical signal to another neuron or to a target effector cell.
15. Your eyes blink about 20 times a minute, or 10 million times a year.
Blinking helps your eyes stay healthy by keeping them moist and oxygenated. It provides nutrients and other substances, which keeps your eyes clean and clear. Additionally, blinking prevents dry eyes, thereby decreasing the risk of tear film-related problems.
16. Your brain doesn’t feel pain.
Although the brain is the center of pain, it lacks pain receptors and fails to perceive pain. Therefore, it does not rule out the possibility of a headache. Also, the brain is surrounded by many nerves, tissues, and blood vessels, all of which are sensitive to discomfort and can cause a throbbing headache.
17. the brain is 80% water
Have you ever wondered how much of your brain is water? The answer is about 80%. Water makes up about three quarters of our brain. Therefore, even mild dehydration can lead to fatigue, headaches, loss of mental clarity, tension, and sleep problems. Since water makes up 80% of our brain, it’s obvious that we need to be hydrated.
Weird facts about blood
18. It takes up to two million mosquito bites to kill you.
The loss of two liters of blood endangers the life of an ordinary person. A mosquito bite absorbs an average of 0.01 to 0.001 milliliters of blood. Therefore, it would take around 200,000 and 2 million mosquito bites to kill a human being due to blood loss.
Weird facts about sleep
19. We spend a third of our lives sleeping.
If a person sleeps an average of 8 hours a day, they will sleep 229,961 hours in their lifetime. This represents about a third of its existence. Surprising! Is not it ?
20. The average person dreams 4-6 times a night.
According to the National Sleep Foundation, the average person dreams 4 to 6 times a night. According to the National Institutes of Health, you can spend up to two hours in dreamland during a night’s sleep.
Other general facts about the human body
21. Humans and slugs have a lot in common.
Humans and slugs share a lot more common characteristics than you might think. Our DNA shares 70% of its sequence with that of slugs. All creatures, like plants, once shared a common ancestor: the DNA of a human and a banana is 50% identical. Therefore, a human is 50% a banana. To some degree, all living things on Earth are related. It just means that our evolution took a different path at some point.
22. Hiccups protect the lungs from the gills you no longer have
Have you ever wondered why you get hiccups? Diaphragm spasms cause you to suck in air, which causes a swallowing sound in your voice box. Hiccups aren’t useful in today’s world, but they were 370 million years ago. Scientists believe that our earliest ancestors had both gills and lungs and that water could be sucked into their lungs when they sucked it in through their gills. A well-programmed hiccup allowed the water to escape, thus avoiding suffocation. Although we no longer have gills, we still appreciate the occasional hiccups!
23. Most heart attacks happen on Mondays.
On Monday, the risk of suffering a heart attack increases by 20% for men and 15% for women. This phenomenon is probably due to the stress generated by the need to return to work. However, scientists warn that alcohol consumed on weekends can increase the risk of heart attack.
24. When your stomach growls, it’s filled with hot air.
It’s not your imagination that makes you feel a grunting feeling from hunger. But why do we grunt after eating? This is usually due to hot air passing through the intestines. Air enters your digestive system through normal swallowing, especially if you drink while exercising or chat while eating. So it could be that your stomach is in the process of evacuating food particles from your last meal, which is causing the growling.
25. Unlike other parts, your teeth can’t fix themselves.
Teeth, unlike any other part of your body, are incapable of self-repair. That’s why you probably see a dentist for checkups more frequently than a regular doctor. The fluoride in toothpaste and drinking water can help restore enamel, but if a tooth begins to erode, it should be filled.
Here are some of the weirdest and funniest facts about humans and their bodies. We’re sure you didn’t know many of them. So share this article with your friends to let them know these facts, it would be fun!