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11 things make the body during sleep



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A survey conducted by the Center for sleep showed that the French sleep pretty bad. While 43% of them have already consulted medical specialists in sleep problems, website Business Insider I have decided to take stock of the importance of sleep. As biologically and what forces he showed he sleep on our body?

1 / slow wave sleep and REM sleep

When you sleep, your body goes through several sleep phases, grouped into two categories: slow wave sleep (non-REM) and REM sleep or REM (Rapid Eye Movement, because eyes are mixed unstable), your brain at this stage is the production of alpha waves (not alarm) and the ethanol (linked to the state of meditation) to slow delta waves (deep sleep).

2 / muscle paralysis

Another interesting fact is how the dream: it paralyzes the muscle. During REM-sleep, the frontal cortex of the brain that controls body movement, almost died out and fortunately. In fact, some people do not know that paralysis and physically realize his dream, which can be very dangerous to themselves and others.

3 / decrease your body temperature

During sleep, your sympathetic nervous system relaxes, blood pressure drops, breathing slows, and your temperature decreases as the cells that regulate the switch. Thus, the body temperature is lowest for a few hours before the wake. Therefore, to sleep in a cool place can signal your body that it's time for him to rest.

4 / To strengthen the immune system

You've probably already noticed, the more you are weak and tired, the more you tend to catch every disease that pass. And for good reason: good sleep with & # 39 is the key to a strong organization. While you sleep, it fights infections by releasing cytokines, proteins secreted by cells in the body that act as chemical mediators.

5 / Avoid mood disorders

Further evidence of the importance of sleep for a healthy body: it helps regulate the neurotransmitter (molecules, allowing the brain to send messages between neurons, including norepinephrine, serotonin, and dopamine). If the neurotransmitter balance, your brain does not work, and you are less careful than usual, your mood changes, even surly. Numerous studies also link between sleep disorders and depression. In addition, the study confirmed that the risk of being in a car accident four times for those who slept less than five hours a day. Conversely, sleep well and sufficiently maintains stable levels of neurotransmitters: you are in a better mood and more focused.

6 / to improve memory

Most people live six cycles of REM per night, each of which lasts about 90 minutes. This dream is one where you do most of your dreams, your brain becomes more active: he sort of memories and analyzes the information of the day, thereby enhancing long-term memory. "Sleep is very different in non-REM sleep than in REM sleep Non-REM dreams more literal and accurate;. Especially our brain, which brings back memories of the previous day on the other side. , REM sleep, when the creative side of the product, abstract and crazy dream, "said Dr. Matt Johnson, a neuroscientist and professor of psychology at Hult International Business School, Business Insider.

7 / Clean her brain

Sleep allows your brain to clear out the toxins that accumulate during the day, according to a study from the University of Rochester. Some of these wastes in part responsible for neurological disorders, sleep in this particular function is essential for healthy brain.

8 / Stress Management

When you sleep, your pineal gland releases melatonin, the hormone that regulates biological rhythm. In addition, according to researchers at the Cleveland Clinic in the US, your body also produces antidiuretic hormone, which prevents you urinate in the middle of the night. At the same time, your cortisol, a primary stress hormone, secreted by the adrenal glands, are falling. Conversely, if you are sleep deprived, your production will increase stress. Studies have shown that sleep 6 instead of 8 hours a day increased levels of cortisol by 50%, which is not & # 39 is negligible.

9 / Have Beautiful Skin

You want beautiful skin? Sleep, sleep, sleep. "Many of the skin cells have a circadian clock and depends on the amount of sleep we get each night. Maintain a regular sleep schedule can keep our skin healthy. Lack of sleep may contribute to skin diseases such as psoriasis, acne and rosacea, "Terry said Cralle, sleep specialist Business Insider, In addition, according to a Korean study published last year, after a night of sleep deprivation, the participants showed a decrease in skin elasticity and hydration. Their pair is more noticeable and blood flow to the facial skin decreases.

10 / Increasing Libido

No longer do you ever feel like your partner? Go early. study The Journal of Sexual MedicineSleeping nine hours a night may increase by 14% of your desire for sex the next day. Nevertheless …

11 / better endure the pain

Last advantage of sleep and last but not least the resistance to pain. Indeed, according to the research paper dreamPeople sleep on average nine hours a day will bear the pain up to 25% longer than those who make the night seven. If a hard day physically waiting for tomorrow, you know what you should do.

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