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way Spend 1/3 of our lives doing it.
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Yet we still don't completely understand this bizarre ritual we carry out each night.
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You lie down, your body goes unconscious.
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You see the weirdest pictures in your head and then wake up on Lee to repeat the whole process the next day.
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Sleep is funny, and here's the proof.
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Like I said, you spent 1/3 of your life off in dreamland.
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That's about 25 years.
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If you were doing the math, we also spend about seven years of her lifetime trying to fall asleep.
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Everybody thinks you need eight hours of shut eye each night, but your sleep.
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Our requirement changes throughout your life.
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Children need 10 to 12 hours.
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Teens need 8 to 11 adults, 7 to 8 hours and seniors air fine with 6 to 7 hours.
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Now.
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Good sleep is necessary for effective work and productivity, but good doesn't necessarily mean long.
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Some famous historical figures slept very little from 2 to 4 hours, and this didn't prevent them from doing great things.
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Divinci, Franklin, Tesla's Churchill And that's not all.
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There's a sleep mutation that allows a person to sleep just 2 to 6 hours and not experience any side effects.
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Now, if you have a dog or cat, then you might have noticed that they make funny sounds while they're sleeping.
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Yes, they do.
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Dream, and experts aren't quite sure why or what they see.
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My dog, Riley even barks in his sleep.
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Temperature is a critical part of sleep and possibly dreams.
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If your room is too cold or hot, it can trigger nightmares like you're in a cramped space or a fire.
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Some great discoveries were found thanks to dreams.
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For example, Mendeleev created the periodic table after he dreamed about it.
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This happens because our brain processes and analyzes all the events we experienced throughout the day.
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Many experts believe this is why we dream in the first place.
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By the way, I love hearing dream stories.
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What's one dream you remember the most?
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Or maybe have on a regular basis?
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Let me know down in the comments and onto that weird, sudden twitch your body might do as you're falling asleep.
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This happens because the brain sends impulses to the muscles.
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It's called a hip nick jerk.
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But why does the brain do it?
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Nobody knows for sure.
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Our brain shuts off all our muscles when we sleep.
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This is so that you don't run away in real life as you're dreaming about running away from some pursuer.
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But the brain doesn't shut off the eye muscles, which is why your eyes can move and they dio during the deepest part of sleep, a stage called rim or rapid eye movement.
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But what if your brain wakes up and your body muscles are still disabled?
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This condition is called sleep paralysis.
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Many people have experienced it at least once in their life, and those same people say it's far from pleasant.
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Sleep, in reality, are mixed in this state, and individuals can see hallucinations.
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Babies dream in the womb, but there are no visual images in these dreams.
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On Lee, tactile and auditory sensations are spine relaxes and stretches when we sleep, meaning you can be a wee bit taller in the morning.
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Then, in the evening, people sleep under blankets not only for warmth, though that does help.
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It's also psychological way.
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Relax better, thanks to the blankets touch, even if it's heavy.
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That slightest bit of pressure on our bodies sues the nervous system much like a hug.
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We also feel more protected when we sleep under the covers.
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Ah, body out in the open makes a person feel uncomfortable and vulnerable, especially when you're about to let your guard down and go to sleep.
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And, well, the blanket thing is just a custom.
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Even if you don't feel like you need it.
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It feels weird to sleep without it.
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Japan and South Korea get the least sleep on Earth less than six hours.
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New Zealand gets the most a whopping eight hours when of the few places getting the recommended amount.
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College students might not believe me, but pulling all nighters cramming for an exam won't help your grade.
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If you're going to do that, do it a couple of days before the big test day, the night before.
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Get good sleep.
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It helps you retain learned information.
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Nobody knows for sure what causes deja vu.
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One of the theories is associated with sleep, even though it translates from French as already seen.
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You likely dream something but forgot about it by the morning.
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Then, in reality, you see those events that are a bit like the forgotten dream.
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Have you ever had deja vu?
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A lot of animals, like horses and zebras, sleep while standing there.
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Body has evolved to pull this off so they can run away from danger at any moment.
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Some birds the albatross as an example, can sleep while flying.
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There's a whole laundry list of animals dolphins, manatees, penguins and crocodiles, to name a few that sleep with one eye open.
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It's possible because half of the brain's air working and watching the situation around while the other half sleeps.
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Some people not only snore during sleep but can also grind Nash or clench their teeth.
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This is called Brooks is, um, like a lot of things connected to the world of sleep.
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Nobody knows the exact causes of this phenomenon.
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Sleep is as vital.
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The humans as food and water are a healthy person, will live longer without food than without sleep.
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It seems obvious that we need to sleep so that all our bodies bids can refresh themselves.
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But no one has fully figured out all the effects sleep has on the body on Lee that we need it and we don't do well at all without it.
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One thing's for sure.
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Our body accumulates energy during sleep If you don't sleep for a long time, then the body looks for this energy in food.
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Not surprisingly, lack of sleep often leads to weight gain.
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Sleepwalking is another mystery we haven't figured out yet, but there are plenty of misconceptions surrounding it.
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You might imagine a sleepwalker with their arms extended out in front of them like a zombie.
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But that's just not the case.
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You often can't even recognize if a person is sleepwalking and waking, a sleepwalker won't give them a heart attack.
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But it probably will give them a shock, and they might try to fight you.
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It's much better to gently guide a sleepwalker back to bed without waking them, if you can.
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Many people claim that they don't dream it all, but they likely just forget the dreams they do have.
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If you want to remember your dreams, then put a notebook or a voice recorder next to the bed as soon as you wake up immediately get to writing or recording the 1st 90 seconds after waking up our ideal.
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It might take some practice, but you will start remembering more and more of your bizarre brain movies.
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If you do remember your dreams.
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How many do you think you have a night?
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One big, long epic movie?
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Nope, It's more like 4 to 6 of them each night, and your dreams get longer throughout the night.
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It's the final one you're probably recalling.
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Before there were alarm clocks, people had all kinds of ways to wake up.
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Some got up with the sun at the crack of dawn.
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Others depended on their rooster toe.
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Wake them.
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And in more populated areas, it was thanks to the ringing of the city tower.
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There was also a special profession called a knocker upper.
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This probably not very popular.
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Fella would walk among houses in the morning and knock on bedroom windows to wake people up for work.
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Layla buys.
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How did they work on babies so well?
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Well, imagine you're a baby again.
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You've had a busy day discovering new things in this world.
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All kinds of smells, sounds, materials.
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The day you found your toes was a particularly busy one.
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It's hard to fall asleep at the end of the day when your brain is struggling to analyze such a massive storm of new information.
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But when you hear a lullaby, your brain can concentrate on one thing.
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That soothing, hypnotic voice Your head clears.
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You feel it.
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Peace and sleep soon follows.
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On that note, I'm getting kind of sleepy myself.
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Wake up.
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If you learned something new today, then give the video alike and share it with a friend.
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And here are some other cool videos I think you'll enjoy.
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Just click to the left or right, and remember, stay on the bright side of life.