Could your body do with a spring cleanse? May 13, 2015 Articles, Liver Doctor's Articles Leave a comment 5,162 Views. Today we cannot escape environmental toxins as they are increasingly in the air, water, soil and, by extension, in the food we eat.
Sleep Stages. Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; includes Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep. Translation. Find a translation for the sleep stages definition in other languages:
Waking usually transitions into light NREM sleep. NREM sleep typically begins in the lighter stages N1 and N2, and progressively deepens to slow wave sleep as evidenced by higher-voltage delta waves. N3 (slow wave sleep) is present when delta waves account for more than 20% of the sleep EEG.