Proof The Bible Is True

By Dr. Mercola

By Dr. Mercola

Healthy sleep consists of several stages, and you cycle through these stages four to five times during the nightly sleep cycle. As a result, you’re progressively descending into deep sleep and ascending toward lighter states of sleep several times, and this cycling is tremendously important, both from a biological and psychological perspective.

During stages 1 and 2, your brain remains active as it begins the editing process where decisions are made about which memories to store and which to discard. During stages 3 and 4, you enter into a deeper, almost coma-like state, during which the actual physiological cleansing …read more

Source: mercola