Did You Know? Researchers have finally figured out why we sleep

Did you know that we now have some insight into why we sleep? This was previously something of a mystery to scientists, but recent research has shed some light on what goes on in our brains while we snooze (and hopefully dream!).

Did You Know? Researchers have finally figured out why we sleep
Did You Know? Researchers have finally figured out why we sleep

For one thing, while we’re sleeping, our brain performs much of the same maintenance work as when we’re awake – removing waste, re-organizing old connections and building new ones, consolidating memories and more.

Humans need at least seven hours of sleep each night

Studies have shown that there is a direct correlation between sleep and cognitive performance. If you want to be productive, you need to get enough sleep.

  • And it's not just about how many hours of sleep you get in a night; what matters most is that your sleep schedule is consistent and regular.
  • For example, if you are used to going to bed at 11pm every night, then suddenly decide to go to bed at 2am one day because of a late meeting, it will take your body time to readjust and by that time...it’s already time for your next meeting.
  • Your body requires 7-8 hours of sleep each night so make sure you are getting those 7-8 hours every night.

Sleeping less is possible if you train yourself
A study by scientists at Michigan

 Technological University found that, contrary to popular belief, your body can become accustomed to sleeping less.

The key is slow and steady adjustment. To increase your sleep efficiency (that is, how much time you spend asleep versus lying awake in bed), try setting a goal for an extra half-hour of sleep each night over a period of several weeks.

At first you may struggle with falling asleep—but then you’ll adjust and be able to sleep longer. In fact, studies show that even when people sleep just half an hour longer than usual, they report feeling less tired during the day and needing fewer cups of To keep up with their busy schedules, most people drink coffee or energy drinks.

Lack of sleep impairs you in ways you may not realize

Did You Know? Researchers have finally figured out why we sleep
Lack of sleep impairs you in ways you may not realize

when you don’t get enough sleep, your body can't repair itself as well. For example, sleep deprivation slows down your metabolism. 

  • Not only is it harder to lose weight, but your body also burns fewer calories while you are asleep! Another reason why we should treat sleep with great respect and care, and make sure we get enough of it every night. 
  • In fact, recent research has suggested that getting less than 6 hours of sleep per night over a prolonged period could be associated with an early death. Before writing off sleepless nights as part of our daily routine and just a natural consequence of aging, however..
  • The importance of sleeping on your side
  • Another study found that subjects who slept on their sides as opposed to sleeping on their backs had a tendency to consume less calories.
  • Not only does sleeping on your side promote weight loss, but it also increases circulation and is good for heart health. Plus, according to experts at Ohio State University Medical Center, sleep apnea sufferers tend to experience fewer symptoms when they sleep on their sides versus sleeping on their backs or stomachs.
  • While there are plenty of things you can do to lose weight more effectively by changing your diet and exercise routine, adding another tactic—sleeping in a specific position—can help speed up your weight-loss efforts even more.

Exercise can boost your ability to function after only 3 hours of sleep

Exercise has always been known to promote healthy brain activity, which is why athletes seem to be so much more mentally fit than most people.

Now, researchers at Harvard University have discovered that a single 30-minute workout can enhance an important form of memory and raise students' grades.

The study found that high school students who exercised before class were able to recall information much better than those who did not exercise first.

They also had higher GPAs and test scores in their chemistry course!

Some people are more sensitive to lack of sleep than others

a small study from 2010 found that people who get 5 hours of sleep per night feel as sleepy and perform as poorly on cognitive tests as people who have been up for 24 hours straight.

But being short on sleep is bad for everybody. A 2011 study showed that getting 6 hours of sleep a night is optimal for memory, while 10-hour nights impair it. 

More recent research has shown that even sleeping too much might be detrimental to our health: a 2012 study in Japan suggested that getting more than 8 hours per night can double your risk of dying from cardiovascular disease.

It seems there's no magic number when it comes to how much we need—though researchers are learning more about why so many Americans chronically get too little or too much of it. Read below to learn more!

SOURCE : Yasoquiz

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