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The Need For Sleep Beginning of Paper As fundamental as drinking or eating, sleeping can be described as a certain necessity that all animals need. Although it can not be proven beyond the shadow of a doubt what the evolutionary advantages are, there have been many studies that show what happens if we do not sleep. The .... Middle of Paper .... and slow which makes this stage the hardest to wake from. After an hour or so, you shift into a highly active stage characterized by rapid eye movements, hence the name REM sleep. Suddenly your brain waves are almost the same as if you were awake. You're in the dreaming stage, which occurs several times across the course of the night. Now, what happens when we're deprived of the restful sleep we need? We're less alert and attentive, more inclined to irritability and other mood problems. These emotional changes can cause our relation .... 414 words | 2 pages Subscription Length Price Join 30 days membership (recurring) $19.95 90 days membership (recurring) $39.95 180 days membership (non-recurring) $69.95