Eight hours a day, 56 hours a week, 224 hours a month, 2688 hours a year. That adds up to one third of our life. This is the average time a person spends sleeping. It seems like an awful lot a time wasted on inactivity. However, sleep is not about inactivity. The electroencephalogram (EEG) is a summation of activity of postsynaptic cerebral neurons. The changes the brain goes through during sleep is measured by the EEG. These measurement …
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showed last 75 words of 662 total
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