ANSWERS: 4
  • I think REM sleep typically occurs 30 to 90 minutes after falling asleep and lasts about an equal time. Most, though not all, dreaming occurs during REM sleep.
  • I believe it depends upon individual's state of mind,purity of thoughts and observing the matters during day time.Sometimes,it is a long sequence of one dream and sometimes it is in a short form about my thought process of daily discussions in the family.I hardly get any dream about my business life.I can recollect most of my dreams to share with. +5
  • since the dawn of man , till......?
  • While dreams happen during REM, and individual periods of REM typically last 15-30 minutes, individual dreams last on the order of 20-30 seconds, even when they seem to be several hours long. Dreams are caused by a cascade of neural energy flooding up the spine into the cerebral cortex: the mind attempts to make sense of these neural impulses - essentially interpreting them as real sensory inputs - and creates a dream seemingly out of pure intuition.

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