Benefits of Good Sleep

Michael Lee Zwiers, Ph.D., 2014

SLEEP IS VITAL FOR HEALTH AND WELLBEING.

What happens when we sleep?

Sleep has 5 phases that repeat about 4 to 5 times (or cycles).

During sleep, the body heals, the brain consolidates learning, and weare rejuvenated.

Executive Functions

The prefrontal cortex, part of the frontallobe, is impaired by ADHD.

It has several important functions including:judgment, organization, impulse control,attention, and mental flexibility.

The prefrontal cortex is usually the mostactive area of the brain in well-restedindividuals.

ALPHA➜ THETA:Light Sleep

5 - 10 mins

SLEEP SPINDLESDeeper Sleep

15 - 20 mins

DELTA:Deep Sleep

DELTA:Very Deep Sleep

30 mins

ALPHA: REMSleep

5 - 10+ mins

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Benefits of Good Sleep

Michael Lee Zwiers, Ph.D., 2014

The prefrontal cortex regenerates duringthe first stage of sleep, so you can feelsomewhat refreshed and clear headedafter only a short nap.

Learning While You Sleep

REM sleep is the final stage of the sleepcycle and is important in learning andmemory. When a person is taught a newskill, his or her performance does notimprove until he or she receives at leasteight hours of sleep.

An extended period of sleep ensures thatthe brain will be able to complete the fullsleep cycle, including REM sleep, so youcan wake up feeling rested.