Did you know the stages of sleep? Amazing! - Green Health Tips - Health & Fitness News Did you know the stages of sleep? Amazing! | Green Health Tips - Health & Fitness News

Did you know the stages of sleep? Amazing!

Sleep is a physiological process that the body constantly needs to replenish exhausted energies during the day, as well as to perform some ...

Sleep is a physiological process that the body constantly needs to replenish exhausted energies during the day, as well as to perform some internal actions proper to the body and its proper functioning.

However, this process goes through both stages and stages, which are vital for a quality sleep and without distractions that do not allow the body to rest fully.

Sometimes the stages of sleep can be affected by factors outside the body such as:

  • Tobacco consumption
  • Excessive consumption of coffee
  • Alcoholism
  • Anxiety
  • Stress

How can a body that is entering into a state of sleep be physiologically recognized?

By keeping your eyes closed, electrical oscillations can be clear on the electroencephalogram (EEG) at an alpha rate of 8-13 per second.

With the passage of the minutes, are highlighting changes that are associated with each of the stages of sleep , according to brain activity.

How are the stages of sleep divided?

Did you know the stages of sleep? Amazing!

Stage 1

  • It belongs to the stage of light sleep. It is  a state of brief drowsiness because it is that stage in which the brain enters and leaves the dream , in addition to being very easy to wake up.
  • Within stage 1, the eyes have rapid movements, this process is known as MOR or REM sleep (rapid eye movements) while the muscles are slowing down.
  • The person is able to perceive auditory and sensorial stimuli, being little or nothing restorative, because it is a stage of minimum rest.
  • Also, throughout this stage are sudden muscle contractions.

That’s why we can sometimes notice the sensation of suffering a sudden fall: it is the perception of going into the depth of stage 1 to spend in a few minutes to stage 2 of the dream.

Stage 2

Did you know the stages of sleep? Amazing!

  • In the second stage of sleep, a pattern is identified in which the movements of the eyes stop, while the dynamic brain waves are slowing, leaving a single activity of fast waves brain.
  • In the EEG  , the brain activity known as sleep spindles appears.

Apart from the slow waves, these represent the moment in which the body temperature, the heart rate and the respiratory rate begin to decrease progressively.

  • At this stage, the nervous system blocks the sensory stimuli , so it is almost impossible to receive information from outside.
  • Thus, this makes it a refreshing part of the dream, albeit in minimal proportions.

Step 3

  • In this stage of the dream , the person begins to have waves of cerebral dynamics much slower than in the previous stage.

They are the delta waves, which are interspersed with fast but small waves.

  • It is a part of deep sleep in which the person usually stays for 2 or 3 minutes without eye movements, ie sleep NOT MOR, being difficult to wake up.
  • Blockage of sensory stimuli is intensified. In case the person wakes up at this stage, they will feel disoriented and confused.

In this period there are no dreams of imaging, blood pressure decreases and growth hormone is increasing.

Step 4

Did you know the stages of sleep? Amazing!

  • It is a stage guided almost exclusively by delta waves. It is the intense deep sleep and it is much more difficult to wake up these people.
  • There is no activity of eye movements or muscle tone. It is usually in this dream where children often wet the bed, walk asleep or experience night terrors.
  • This is within the stages of very slow sleep, usually lasts approximately 20 minutes and dreams do not occur.

However, it is the one that helps us to know if the dream has worked or not.

How many cycles of sleep stages occur in one night?

People usually sleep varying between NON-MOR sleep and MOR sleep in periods ranging from 70 to 100 minutes.

The MOR sleep, on the other hand can last from 5 to 30 minutes and the rest belongs to the NON MOR.

Both cycles usually repeat every hour and a half during the night, and we can reach between 4 and 6 cycles of MOR sleep.



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Green Health Tips - Health & Fitness News: Did you know the stages of sleep? Amazing!
Did you know the stages of sleep? Amazing!
Green Health Tips - Health & Fitness News
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