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SLEEP

Across
Our internal clock
Staying up late several nights in a row creates
One sleep cycle has this many stages
This forms during sleep between nerve cells to help you remember new information
Most adults need 7-8 hours of sleep to achieve the highest level of
This cycle restores the body
In the morning, your eyes and brain are signaled to wake-up by
Healthy habits, behaviors and environmental factors all contribute to
Our brain makes a chemical that makes us sleepy called
Down
A dream in which you know you are dreaming
The ability to adapt to input
During Stage 3 you are in a
To help you concentrate, solve problems, and learn, sleep refreshes your
This may give your dreams their surreal quality
Sleep deficiency is linked to
Sleep is closely linked to _____ of life
This cycle restores the mind
This affects almost every tissue in our bodies