WHAT IS SLEEP? AND WHY DO YOU NEED IT

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WHAT IS ? AND WHY DO YOU NEED IT

For most people, sleep is fine: you rest from giving you energy during the day to do what you want to do. It shows research time and again that it is very healthy, but why? And what exactly is sleep?

Sleep is a daily recurring state of physical and mental rest. Most muscles relax yourself and your awareness level is low. Like the heart rate and breathing. Your brains block all stimuli from the environment, so that the outside world has little effect temporarily.

Sleeping is done in cycles of five sleep stages . On average you go through four or five cycles of 90 minutes. As the night progresses, the cycles contain less deep sleep and dream more.

A third

The knowledge about sleep has increased dramatically over the past 50 years, yet it remains somewhat unclear why we spend more than a third of our time in bed. If you are 90 years, you’ve slept an average of 32 years. Of course you’ll be at that time to rest and there is room for recovery. There are even areas of the brain, focusing on rehabilitation, which are active only during sleep. On the other hand takes sleeping and dreaming energy.

Why?

The importance of sleep is particularly evident if you sleep too little. The brains example, really need sleep. Thanks to sleep you can remember what you have learned during the day. And it seems also that sleep is clean brains. Recent research shows that a certain type shrinks brain cells during sleep, thus creating more space in the brains to clean up pollutants.

From my own experience, you probably know that sleep deprivation is not good for your concentration. Sleep deprivation also affects your speech, responsiveness, decisiveness and sense of time and space. You’re also more impulsive and less creative.

After – and especially after multiple – short night will compensate your body for sleep deprivation. Too little sleep has also certainly affect your physical health. You will need such as alcohol, drugs, caffeine or food. In addition, you have a lack of sleep more of the hunger hormone ghrelin in your body, so the risk of obesity in slaapprolemen many times greater. Stress caused by too little sleep creates a lower immune system and long-term poor sleep also leads to an increased risk include anxiety, type 2 diabetes, heart disease and dementia.

Need

As with hunger and thirst, your body really needs sleep. Especially when you’re awake, you’ll eventually the urge to sleep. You become tired . The biological clock has also a share that fact regulates your 24-hour sleep-wake rhythm. Especially based on daylight .

The time when you are sleepy, per person can vary greatly: the so-called morning and evening people. This preference also depends on your biological clock .

How long

If you do not come daily to the standard 8 hours of sleep per night, which does not have to be bad. That eight hours with an average. There are people who need a lot more, but with just a lot less able to. Basically states that you are not less than six hours or more than nine hours a night to sleep, the risk of health problems increases because increasing.

Of course the quality of your sleep even more important. The first 4 to 5 hours of sleep are the most important, but not everyone is sufficiently rested. Whether you sleep enough, is actually mainly right to determine on the basis of how you feel throughout the day.

So listen to your body. If you always need an alarm clock to get up, get up and take a long time, if you need many stimulants or if you’re cranky and irritable, it may well be that you have a sleep deficit.

regularity

For a good night’s sleep is frequently very important. Occasional outlier can in most cases no harm, but certainly to sleep , it is worthwhile to avoid large swings in your bedtime. If you want to sleep, limit it to 1.5 hours (the duration of a sleep cycle).

The Sleep Book: How to Sleep Well Every Night

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