Sleep is divided into five individual stages. The first stage is the lightest stage of sleep(light sleep). Stage one is the drifting stage (as I like to call), which is the part of sleeping in which you would feel yourself falling out of conciseness. This stage lasts for about five to ten minutes.
According to my research stage two is still light sleep. In this stage brain activity starts to slow down, and the heart rate and breathing starts to become slower and more steady. Also body temperature starts to decrease a little as you start relaxing and preparing to go into a deeper sleep.
Stage three is the start of deep sleep or slow wave sleep. During stage 3, brain waves are slow waves(also known as delta waves), although there may still be short bursts of faster waves of brain activity (also known as beta-waves). If a person is woken up while in this stage they are likely to feel confused and would find it hard to focus. This is also similar in stage four.
Stage four is the deepest and there are no more beta or fast brain activity,only slow brain activity or delta waves. In this stage it is hard to be woken up and lasts for about an hour. It is during this stage that the body starts to repair itself, for example fixing worn out muscles. I call this stage the healing process.
Stage five is the dreaming stage. This stage is the only REM sleep we get in the entire sleeping process. Blood flow, breathing and brain activity increases in this stage. Another aspect of REM sleep, is that the muscles in your arms a
nd legs will go through periods of paralysis.The first period of REM sleep of the night usually begins around 90 minutes after you start drifting off, and lasts for about 10 minutes. As the night passes, the periods of REM sleep become longer, with the final episode lasting an hour or so.
According to my research stage two is still light sleep. In this stage brain activity starts to slow down, and the heart rate and breathing starts to become slower and more steady. Also body temperature starts to decrease a little as you start relaxing and preparing to go into a deeper sleep.
Stage three is the start of deep sleep or slow wave sleep. During stage 3, brain waves are slow waves(also known as delta waves), although there may still be short bursts of faster waves of brain activity (also known as beta-waves). If a person is woken up while in this stage they are likely to feel confused and would find it hard to focus. This is also similar in stage four.
Stage four is the deepest and there are no more beta or fast brain activity,only slow brain activity or delta waves. In this stage it is hard to be woken up and lasts for about an hour. It is during this stage that the body starts to repair itself, for example fixing worn out muscles. I call this stage the healing process.
Stage five is the dreaming stage. This stage is the only REM sleep we get in the entire sleeping process. Blood flow, breathing and brain activity increases in this stage. Another aspect of REM sleep, is that the muscles in your arms a
nd legs will go through periods of paralysis.The first period of REM sleep of the night usually begins around 90 minutes after you start drifting off, and lasts for about 10 minutes. As the night passes, the periods of REM sleep become longer, with the final episode lasting an hour or so.
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