What is REM sleep? We asked an expert.
When we sleep we cycle through different stages of sleep, most are known as non-REM sleep stages, but the final one is known as rapid eye movement . It's the stage of sleep where we are more likely to dream and our eyes move faster, as they react to more intense brain activity.
"In healthy adults, the first couple of REM sleep periods are usually short, of about 10- 15 minutes, but REM sleep periods duration increases as the night progresses and is longest in the last third of the sleep episode. The final one may last roughly an hour," explains Brito. She goes on to explain:"Our muscles become temporarily paralyzed, as we lose muscle tone, which may prevent us from acting out our dreams."
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