2 months ago  
Stages of Sleep

Every 60-100 minutes we go through a cycle of four stages of sleep

• Stage 1 is a drowsy, relaxed state between being awake and sleeping - breathing slows, muscles relax, heart rate drops

• Stage 2 is slightly deeper sleep - you may feel awake and this means that, on many nights, you may be asleep and not know it

• Stage 3 and Stage 4, or Deep Sleep - it is very hard to wake up from Deep Sleep because this is when there is the lowest amount of activity in your body

• After Deep Sleep, we go back to Stage 2 for a few minutes, and then enter Dream Sleep - also called REM (rapid eye movement) sleep - which, as its name suggests, is when you dream

In a full sleep cycle, a person goes through all the stages of sleep from one to four, then back down through stages three and two, before entering dream sleep

via youmightfindyourself

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45. hiwendy reblogged this from yowordup and added:

    This is neat! No wonder why I am always dreaming at the edge of waking up!

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