Thursday, August 18, 2022

20+ Body Facts I Can’t Forget After Hearing Them

There's more nerve cells and connections in your brain than there's stars in the milky way if you decided to count them all it would take you 3000 years to make it easier for you you have about 100 billion neurons in there the brain can't actually feel pain it does have a pain center but it doesn't have pain receptors itself when your.

Head hurts you can feel it because of the nerves tissue and blood cells around your brain your ram or working memory is an essential thing that we need to perform almost any everyday activity including conversations surfing the net and even petting your dog our strongest and emotional memories are often fake the.

Central memory gives us the confidence to believe that we remember everything even though most of the details are made up in our heads when we laugh think look at something dream move or do some other activity with our body small electrical and chemical signals run between neurons along those connections and by that.

Neurons make and send more information than all the phones in the whole world you're sitting somewhere outside and an insect lands on your leg your skin has sensory neurons and they quickly send the message to your brain at an impressive speed 150 miles per hour the brain sends back the message to your leg to shake the insect off very fast.

And the speed that information travels is even bigger 200 miles per hour our brain can store only seven bits in its short-term memory don't even try to compare your brain with a phone's capacity not even the one you had back in 2005 that's why you can't even learn a phone number by heart our short-term memory.

Functions just like a chalkboard you can get some information but sooner or later you run out of space to check your working memory capacity try this test ask a friend to write a list of 10 words and read it to you most people recall seven or fewer items from the list synesthesia is a special and rare.

Ability when people can taste music or hear colors only one in every 2 000 people has it five basic senses are taste touch sight sound and smell but people have more senses than that proprioception is when your body is aware of its parts and their position even if you don't see them.

Like if your arm is behind your back and you know it's there if you were an octopus you wouldn't know it because these creatures don't know their arms exist if they can't see them thermoception is your ability to sense temperature equilibrioception is a sense of balance you also have nociception which means.

You can feel pain then there's cronuception that's how you can sense time passing by there are even more senses found in the animal kingdom but people don't have those you can't recall a memory all by itself when you're trying to think of one detail like the color of the t-shirt your friend was wearing the other week.

You'll remember some other details too for example the place where you saw him things you were talking about the hippocampus is the part of your brain that stores memories it usually packs them together including multiple small details on average taste buds last 10 days one theory says deja vu is some sort of.

A brain processing lag scientists think that it might happen when your brain is transferring information from one side to the other and there's a split second delay in that process that means that your brain gets the same information twice and processes it as the event that happened before.

It can create an illusion of falling one of the theories that when you're dozing off your brain sees the relaxing of your muscles as a sign you're in trouble and really falling so it sends signals to the muscles to protect you by tensing up you can physically see your nose but the brain chooses to ignore it otherwise it would stand in the way of your vision.

Plus it would be out of focus brain freeze is an annoying ice cream headache that's how your brain tells you to slow down and maybe stop eating something that's so cold people mostly need seven minutes to fall asleep this time gets shorter if you've just had a large tasty meal people used to dream in black and white.

Much more than today that's because they watched black and white tv around 12 percent of people can't dream in color nowadays all your muscles relax at the same time right after you've fallen asleep your brain thinks you're about to fall asleep and sends quick signals to all of your muscles to awaken them that's why.

It sometimes feels like you're literally falling the hypnic jerk is a twitch you can experience while falling asleep it's an abrupt muscle movement that comes during the non-rem sleep phase if you sleep it doesn't mean all your body sleeps in fact sometimes your brain has to work even harder when you're.

Asleep it needs to process tons of information and reports usually take a lot of time by the time you wake up you'll have forgotten 50 percent of your latest dream after 10 minutes you will remember 90 percent of it when you blush your stomach lining goes red along with your face it happens.

Because your sympathetic nervous system is causing an increased blood flow throughout the body your hair follicles have the same receptors as your nasal passages that's why your hair can detect scents too sandalwood can help you develop that superpower the nose definitely gets a good rest.

While you're sleeping amazingly your sense of smell basically deactivates at night you wouldn't even be bothered if there was a terrible smell in your bedroom no comment when you age your brain is gradually reducing in size by age 75 it's much smaller than at 30 and it starts shrinking by the age of 40.

It happens to everyone and it doesn't affect your mental strength in any way no matter how hard you try you'll never be able to tickle yourself it's because your brain prepares the body for tickling and helps you avoid the typical laughing i'm sorry reaction we recognize only purple blue green.

Yellow and yellow red colors everything else is a combination of these three it's impossible to calculate how many of these combinations the human eye sees because every single person has slight vision differences but it's about 1 million combinations on average you see heads up your skull isn't a single bone.

It actually consists of 28 different bones many of which are fused together to protect your brain the strongest muscles in your body aren't in your arms or legs they're in your head the masseter is the main muscle responsible for chewing and it needs to be the strongest for you to eat normally.

And you know those muscles that allow you to move your ears those are temporalis located above your temples they also help you to chew your food now we've got two really fast muscles they control the eyelid closing in fact they're the fastest muscles in our body eyes are fragile and need protection so the reflex that protects.

Them needs to be as fast as lightning these muscles can shut the eyelids in less than a tenth of a second our body is made of star dust really the more complex elements in our body can only come about through supernovas the first stars were just gassy lumps that were drawn together and at some point started the process of combustion.

This finally led to a nuclear reaction in its center stars that were right there after the big bang were over 50 times bigger than our sun is now inside of them there was a constant process of making the elements and those large stars were burning their fuel faster.

Most of the elements in the human body were formed in those stars over billions of years ago so you could realistically say that part of you is immortal cool huh

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