1. By Aebelle Arriola, Celina Buban, Jordan Dacayo, and Vanessa Monge

2. SLEEP = MORE ENERGY. People need to "charge their batteries" from exhaustion and stress. We sleep to conserve energy. Some people believe we sleep to D R E A M. This is Ed who is sleep deprived because of his 12 hour job. Why Do We Need Sleep?

3. Stages of Sleep: Early Stage Your body temperature decreases, your body pulse rate drops and your breathing is slow. Your eyes begin to close as your brain begins to show alpha waves on the EGG. Your body may twitch, eyes may roll, and you may see images in your mind.

4. Stages of Sleep: Middle Stage Your pulse slows down and your muscles relax. Your breathing is uneven and your brain waves grow irregular. This lasts up to 10 minutes.

5. Stages of Sleep: Later Stage This is when the deepest sleep happens. Sleepwalking and dreaming may occur at this stage. In this stage you are in REM sleep, meaning you are in a more active type of sleep that is by Rapid Eye Movement (REM). It is a bizarre state of consciousness. When you're in dream sleep, you're almost like in a coma.

6. How Much Sleep We Need The amount of sleep a person needs depends on how old you are. For example, us teens need at least 10-11 hours a night on average. People have internal clocks (circadian rhythm) that regulates their sleep cycle and tells them when to wake up. NO SLEEP

7. WHAT IS SLEEPWALK ING YOU ASK? Being partly asleep but not completely. You're doing things without memory of doing so. Sleepwalking may be inherited. It could also be caused by stress, fatigue, or sedative medicine. Associated mostly with children because a part of their brain is still developing and they can't keep their motor activity under control. Sleepwalking can be grown out of. Sleepwalking activities ranges from simply sitting up in bed to housecleaning or driving a car.

8. WHAT SLEEPWALKING LOOKS LIKE This is Ed sleepwalking. His friend Edd (Double D) has no idea what is happening and tries to wake up Ed but Ed can't hear Edd (Double D). DID YOU KNOW? Waking up sleepwalkers is not dangerous.

9. WHAT ARE THE CAUSES AND EFFECTS OF SLEEPWALKING? Habitual sources of sleepwalking are stress, sleep deprivation, and ingestion of neuroleptic medication. Genetic sources of sleepwalking is known to occur more frequently in identical twins. And it is 10 times more likely to transpire if a first-degree relative has had a history of sleepwalking. Medical sources are: Night-time asthma/Nighttime seizures (convulsions) Psychiatric disorders; such as post- traumatic stress, panic attacks, or dissociative states like personality disorders. Most regularly, the effects of sleepwalking aren't harmful at all.... Although sometimes it may become dangerous if the sleepwalker were to ever fall, because sleepwalkers are often clumsy. And sleepwalkers often have no memory of doing anything the previous night when they wake up the next morning.