Stages of Sleep
Do you know about the five Stages of Sleep? Do you feel each REM can be controlled by your conscious if you worked on it or is it all up to your subconscious?
According to to following link, there are four (sometimes 5) stages of sleep that are not referred to as REM, but in fact are sometimes reffered to as non-REM stages, and it is stage 5 only that is called REM.
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The five stages of sleep, including their repetition, occur cyclically. The first cycle, which ends after the completion of the first REM stage, usually lasts for 100 minutes. Each subsequent cycle lasts longer, as its respective REM stage extends. So a person may complete five cycles in a typical nights sleep. |
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Stage 2 ...These waves indicate spontaneous periods of muscle tone mixed with periods of muscle relaxation. |
Memory consolidation during REM sleep. Researchers have found that activity in adult-born neurons (ABNs) in the hippocampus, which is a brain region associated with memory, are responsible for memory consolidation during REM sleep. Identifying the role of specific neurons in memory function deepens our understanding of how memories are formed, retrieved, and consolidated. Source 5c.