Incredibly weird facts about the human body

The Brain

Complex and poorly understood, the brain is what makes everything work properly. The body may be kept alive, but without the brain, a person can’t truly live. Here are some interesting and weird facts about the brain.

• The brain doesn’t feel pain: Even though the brain processes pain signals, the brain itself does not actually feel pain.
• Your brain has huge oxygen needs: Your brain requires 20 percent of the oxygen and calories your body needs — even though your brain only makes up two percent of your total body weight.
• 80% of the brain is water: Instead of being relatively solid, your brain 80% water. This means that it is important that you remain properly hydrated for the sake of your mind.
• Your brain comes out to play at night: You’d think that your brain is more active during the day, when the rest of your body is. But it’s not. Your brain is more active when you sleep.
• Your brain operates on 10 watts of power: It’s true: The amazing computational power of your brain only requires about 10 watts of power to operate.
• A higher I.Q. equals more dreams: The smarter you are, the more you dream. A high I.Q. can also fight mental illness. Some people even believe they are smarter in their dreams than when they are awake.
• The brain changes shapes during puberty: Your teenage years do more than just change how you feel; the very structure of your brain changes during the teen years, and it even affects impulsive, risky behavior.
• Your brain can store everything: Technically, your brain has the capacity to store everything you experience, see, read or hear. However, the real issue is recall — whether you can access that information.
• Information in your brain travels at different speeds: The neurons in your brain are built differently, and information travels along them at different speeds. This is why sometimes you can recall information instantly, and sometimes it takes a little longer.
  

Your Senses

You might be surprised at the amazing things your various senses can accomplish.

• Your smell is unique: Your body odor is unique to you — unless you have an identical twin. Even babies recognize the individual scents of their mothers.
• Humans use echolocation: Humans can use sound to sense objects in their area using echolocation. It is thought that those who are blind develop this ability to heightened effectiveness.
• Adrenaline gives you super strength: Yes, with the proper response in certain situations, you really can lift a car.
• Women smell better than men: Women are better than men at identifying smells.
• Your nose remembers 50,000 scents: It is possible for your nose to identify and remember more than 50,000 smells.
• Your hearing decreases when you overeat: When you eat too much food, it actually reduces your ability to hear. So consider eating healthy — and only until you are full.
• Your sense of time is in your head: How you experience time is all about your perception. Some speculate that stress can help you experience time dilation. Apparently, time manipulation isn’t just for superheroes.
  

Reproduction

How we as a species reproduce offers all sorts of interesting weird facts. Here are some of the weirder things you might not know.

• Your teeth are growing before birth: Even though it takes months after you are born to see teeth, they start growing about six months before you are born.
• Babies are stronger than oxen: On a pound for pound basis, that is. For their size, babies are quite powerful and strong.
• Babies always have blue eyes when they are born: Melanin and exposure to ultraviolet light are needed to bring out the true color of babies’ eyes. Until then they all have blue eyes.
• Women might be intrinsically bi: There are sex studies that indicate that women might bisexual intrinsically, no matter how they class themselves, while men are usually either gay or straight.
• Most men have regular erections while asleep: Every hour to hour and a half, sleeping men have erections — though they may not be aware of it.
• Sex can be a pain reliever: Even though the “headache” excuse is often used to avoid sex, the truth is that intercourse can provide pain relief. Sex can also help you reduce stress.
• Chocolate is better than sex: In some studies, women claim they would rather have chocolate than sex. But does it really cause orgasm? Probably not on its own.
  

Body Functions

The things our bodies do are often strange and sometimes gross. Here are some weird facts about the way your body functions.

• Earwax is necessary: If you want healthy ears, you need some earwax in there.
• Your feet can produce a pint of sweat a day: There are 500,000 (250,000 for each) sweat glands in your feet, and that can mean a great deal of stinky sweat.
• Throughout your life, the amount of saliva you have could fill two swimming pools: Since saliva is a vital part of digestion, it is little surprise that your mouth makes so much of it.
• A full bladder is about the size of a soft ball: When your bladder is full, holding up to 800 cc of fluid, it is large enough to be noticeable.
• You probably pass gas 14 times a day: On average, you will expel flatulence several times as part of digestion.
• A sneeze can exceed 100 mph: When a sneeze leaves your body, it does so at high speeds — so you should avoid suppressing it and causing damage to your body.
• Coughs leave at 60 mph: A cough is much less dangerous, leaving the body at 60 mph. That’s still highway speed, though.
  

Musculoskeletal System

Find out what you didn’t know about your muscles and bones.

• Bones can self-destruct: It is possible for your bones to destruct without enough calcium intake.
• You are taller in the morning: Throughout the day, the cartilage between your bones is compressed, making you about 1 cm shorter by day’s end.
• 1/4 of your bones are in your feet: There are 26 bones in each foot, meaning that the 52 bones in account for 25 percent of your body’s 206 bones.
• It takes more muscles to frown than to smile: Scientists can’t agree on the exact number, but more muscles are required to frown than to smile.
• When you take a step, you are using up to 200 muscles: Walking uses a great deal of muscle power — especially if you take your 10,000 steps.
• Your tongue is the strongest muscle in your body: Compared to its size, the tongue is the strongest muscle. But I doubt you’ll be lifting weights with it.
• Bone can be stronger than steel: Once again, this is a pound for pound comparison, since steel is denser and has a higher tensile strength.
  

Unnecessary Body Parts

We have a number of body parts that are, well, useless. Here are some facts about the body parts we don’t actually need.

• Coccyx: This collection of fused vertebrae have no purpose these days, although scientists believe it’s what’s left of the mammal tail humans used to have. It may be useless, but when you break your coccyx, it’s still painful.
• Pinkie toe: There is speculation that since we no longer have to run for our dinner, and we wear sneakers, the pinkie toe’s evolutionary purpose is disappearing — and maybe the pinkie itself will go the way of the dodo.
• Wisdom teeth: This third set of molars is largely useless, doing little beyond crowding the mouth and sometimes causing pain.
• Vomeronasal organ: There are tiny (and useless) chemoreceptors lining the inside of the nose.
• Most body hair: While facial hair serves some purposes, the hair found on the rest of body is practically useless and can be removed with few ill effects.
• Female vas deferens: A cluster of dead end tubules near the ovaries are the remains of what could have turned into sperm ducts.
• Male Uterus: Yeah, men have one too — sort of. The remains of this undeveloped female reproductive organ hangs on one side of the male prostate gland
• Appendix: Yep, your appendix is basically useless. While it does produce some white blood cells, most people are fine with an appendectomy.
  

Random Weird Body Facts

Here are a few final weird facts about the human body.

• Your head creates inner noises: It’s rare, but exploding head syndrome exists.
• Memory is affected by body position: Where you are and how you are placed in your environment triggers memory.
• You can’t tickle yourself: Go ahead. Try to tickle yourself.
• Being right-handed can prolong your life: If you’re right-handed, you could live up to nine years longer than a lefty.
• Only humans shed emotional tears: Every other animal that produces tears has a physiological reason for doing so.