How Do Sleep Cycles Work?

Sleep is a physiological process necessary for all living beings. Sleeping well is essential for physical, mental, and emotional health since it is during sleep our body consolidates memory and learning restores energy and strengthens the immune system and tissues, among other benefits. However, you need to reach the deep sleep phase – the last of the sleep cycle. PaylessKratom will explain more about it now.

The sleep cycle lasts an average of 90 minutes and is repeated a few times throughout the night. The first phase, called non-REM 1 sleep, is characterized by the transition from waking to light sleep. It usually lasts a few minutes. At this stage, the muscles begin to relax, and the heartbeat and breathing become lighter.

The second sleep cycle phase is called non-REM 2 sleep and accounts for about half of our night. It is there that sleep gains depth: brain waves decrease, as well as heartbeats, body temperature, and breathing.

The third stage is called non-REM 3 sleep. At this stage, deep sleep occurs, ensuring our energy and disposition the next day. In the first cycle, deep sleep lasts an average of 20 to 40 minutes, which decreases in later cycles. The last stage is REM sleep – an acronym in Portuguese for Rapid Eye Movement or rapid eye movement. As the name suggests, the eyes make rapid movements at this stage, and brain waves, heartbeats, and breathing speed up again, although the muscles are still paralyzed.

After reaching the REM phase, the body returns to non-REM phase 1 sleep again and repeats all other stages throughout the night. Discover Yellow Borneo Kratom Benefits, Effects, and Dosage here.

What Is The Recommended Amount Of Sleep For Each Age?

Now that you understand better about sleep cycles, it’s essential to know the recommended time for each person. We have already said that this varies and is influenced by different factors: if the person slept poorly the night before, for example, they might need to replace those hours to remedy the existing ‘debt.’ In general, some parameters can serve as a beacon. See which ones are according to each stage of life:

  • newborns: 14 to 18 hours a day
  • from 3 to 5 years old: 13 to 15 hours a day
  • from 6 to 12 years old: 9 to 11 hours a day
  • teenagers: 8 to 10 hours a day
  • adults: 7 to 9 hours a day
  • elderly: 7 to 8 hours a day