Deep sleep: Stages, Effects, Risk, How Much Need

Every person must have sleep. To stay healthy, health experts also recommend getting enough sleep. Therefore, every person tries to get 7 to 8 hours of sleep daily, but it is also necessary to have a good quality of sleep. When a person gets full and sound sleep, he can always feel healthy and refreshed. Let us tell you that sleep is divided into two categories – REM and Non REM. Sleep starts at night with non-REM. After this REM sleep begins. REM and non-REM also have their phases. The last stage of non-REM sleep is deep sleep.

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Today in this article, you will know in detail about the stages and effects of deep sleep, etc. -

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What is Deep Sleep?
Deep Sleep Stages
- Stage 1
- Stage 2
- Stage 3
Effects of Deep Sleep Deprivation
How Much Deep Sleep is Necessary?
Takeaway

Doctors for Deep sleep: Stages, Effects, Risk, How Much Need

What is Deep Sleep?

When a person sleeps, his body passes through different phases of the sleep cycle. Deep sleep is also a phase of sleep. Deep sleep is that state, due to which every person feels refreshed, energetic and happy in the morning. Actually, in the phase of deep sleep, the waves of the body and brain slow down. In this condition, the body is in a state of rest and is relaxing. It can also be difficult to wake someone from a deep sleep. Even if a person wakes up from deep sleep, he may feel a headache or nervousness. Deep sleep is the last stage of non-REM sleep.

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Deep Sleep Stages

Deep sleep is the third stage of non-REM sleep. Let us tell you that there are no phases of deep sleep, rather deep sleep itself is a phase of non-REM. In the last phase of non-REM, the person may be in deep sleep. Learn, the stages of non-REM -

Stage 1

The first stage of non-REM sleep may last for a few minutes. This is the state in which a person lies down to sleep at night. In this situation, the body starts working to sleep. In this, the speed of heartbeat, breath, and eyes start decreasing gradually. The muscles also start getting relief. Along with this, the waves of the brain also start slowing down.

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Stage 2

The second stage of non-REM sleep is the stage in which a person falls asleep. In this condition, the body of the person is ready to sleep for the whole night. In this, the system of the body starts to slow down and relax. Body temperature starts decreasing from normal. Eye movement stops and brain waves slow down completely, but in this state, you are not completely asleep and can wake up easily.

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Stage 3

The third or last stage of non-REM sleep is deep sleep. In this phase of non-REM, the person is in deep sleep. As soon as the muscles of the body relax, the heartbeat and breathing also slow down. Brain waves slow down. In this state, the person is in such a deep sleep that it becomes difficult to wake up even with a loud sound. Deep sleep is also called slow-wave sleep or delta sleep.

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Effects of Deep Sleep Deprivation

Getting deep sleep is necessary for every person. On the other hand, due to fatigue, stress, or any medical condition, a person has difficulty getting good or deep sleep. When a person does not get deep sleep for a long time, he may have to face the following conditions –

Alzheimer's disease - Lack of sleep can increase the risk of Alzheimer's disease, that is, lack of deep sleep can affect the functioning of the brain.
Heart disease - Lack of deep sleep can also affect the heart. When a person does not get deep sleep, then the risk of getting heart disease may increase in him.
Diabetes - Lack of sleep can be one of the main reasons for increasing the blood sugar level in the body. If a person does not take deep sleep, then he may feel the symptoms of diabetes.
Stroke - If one does not take a deep sleep, then the risk of having a stroke can also be many times higher.

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How Much Deep Sleep is Necessary?

There are two cycles of sleep. This includes REM and non-REM. Let us tell you that a person spends about 75 percent non-REM sleep and 25 percent REM sleep at night. Out of this, deep sleep can be from 13 to 23 percent. How much deep sleep is necessary for a person, can depend on his age and condition -

As age increases, deep sleep decreases. If a person is below 30 years of age, then he can take 2 hours of deep sleep every night.
Also, if a person's age is more than 65 years, he can get only half an hour of deep sleep every night. Many people of this age are not able to go into a deep sleep at all.
Youngsters may need more deep sleep because taking deep sleep removes stress and fatigue from the day. Also, the day can be started with a refreshed body. Along with this, taking deep sleep also promotes development.

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Takeaway

Taking deep sleep is necessary for the body. Hormones are balanced by taking deep sleep, energy remains in the body. Also, the body feels fresh and healthy. Let us tell you that the cycle of sleep starts with light sleep. This is followed by deep sleep and then REM sleep. When a person is in deep sleep, he may feel best, but some conditions can affect deep sleep. The need for deep sleep can be different for every person. For deep sleep, take a healthy diet, avoid noise and keep your distance from electronic devices.