Why do you sleep for 8 hours and still not refreshed?

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I slept for 8 hours but I’m still sleepy?

It’s strange but true. raised to refute the belief about sleeping according to the 8-10 hour formula 

Waking up but not feeling refreshed Shows that the level of sleep is only in the shallow sleep phase. does not go into deep sleep This is why the popularity of using smartwatches is increasing. Because people try to record their sleep behavior. And find ways to increase the quality of sleep in deep sleep or deep sleep (not counting sleeping late or waking up too late).  ยููฟ่าเบท https://ufabet999.com/

Why do we fall asleep in deep sleep?

One of the reasons why we sleep fully but still not refreshed. feeling sleepless and still sleepy It may be because our sleep is not of good quality, that is, it is in the deep sleep that is too short.

Normally, when people go to bed for about 15-20 minutes, they begin to fall asleep. Sleep patterns are divided by brain wave characteristics into 4 stages. 

Normal Sleep or Non-REM (Non-Rapid Eye Movement Sleep or Non-REM Sleep)

normal sleep It takes about 80 minutes in total.

  • Stage 1: Getting sleepy (5-10 minutes)

When sleep begins, brainwaves are stage 1. At this stage, the brain begins to slow down. If awakened at this stage We are less sleepy or may feel that we have not slept and gradually deepen sleep during stage 1 is a short period.

  • Stage 2 Fall asleep (about 20 minutes)

It is the junction between the beginning of sleep. until deep sleep The heart starts beating slower. Body temperature will begin to decrease. This stage of sleep affects the body and stimulates short-term memory. Including increasing concentration

  • Stage 3: deep sleep (about 50 minutes)

The body begins to not respond to external stimuli, light, color, and surrounding sounds may not be able to disturb sleep. If awakened during this period, it will be very sleepy. The body will be in the most resting state. and secretion of Growth Hormone

Rapid Eye Movement Sleep (REM Sleep)

  • Stage 4: Dreaming (about 10 minutes)

During this period of sleep, there will be rapid eye movements. During this time, our brains work similarly to when we are awake. This is the time to dream more than other sleep stages. Sleep during this time will help with memory. permanent learning and creating imagination

How to sleep and wake up refreshed like sleeping enough

Sleep and wake up refreshed. It comes from sleeping completely in the sleep cycle (Sleep cycle) about 3-6 cycles.

What is the sleep cycle?

Normally, 1 sleep cycle consists of

  • Non-REM stage 1, 2, 3
  • Move back to Non-REM stage 3, 2, 1. 
  • Entering REM stage 4
  • Come back to Non-REM stages 1, 2, 3 again, which is the beginning of a new cycle of sleep cycle.
  • Move back to Non-REM stage 3, 2, 1. 
  • Entering REM stage 4, this point is considered to complete one cycle of sleep.