Sleep is differing from wakefulness by a lessor ability to react to stimuli
Oh cool! I always thought dreaming was the most interesting part of sleep.
Sleep is a cycle of the body going from REM sleep to Non-REM sleep
Is there a certain amount of sleep required?
During REM (Rapid Eye Movement) sleep the body is virtually paralyzed
That's interesting! What other cycles of sleep are there?
Our bodies go in anabolic state during sleep so our Muscular, skeletal and immune systems can restore and repair
So we do most of our healing while asleep! That's cool.
and non-REM sleep. Although REM stands for "rapid eye movement", this mode of sleep has many other aspects, including virtual paralysis of the body. A well-known feature of sleep is the dream, an experience typically recounted in narrative form, which resembles waking life while in progress, but which usually can later be distinguished as fantasy.
During sleep, most of the body's systems are in an anabolic state, helping to restore the immune, nervous, skeletal, and muscular systems; these
Sleep
Sleep is a naturally recurring state of mind and body, characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity and inhibition of nearly all voluntary muscles during rapid eye movement (REM) sleep, and reduced interactions with surroundings. It is distinguished from wakefulness by a decreased ability to react to stimuli, but more reactive than coma or disorders of consciousness, sleep displaying very different and active brain patterns.
Sleep occurs in repeating periods, in which the body alternates between two distinct modes: REM sleep