There are people who have repetitive nightmares. And what happens is their brain is trying to process the stress and help their brain actually deal with what happens if this stress happens again, so their brain's preparing them to deal with it in case the stress happens again, but it's so scary that they awaken from it.
Shelby HarrisSo when it comes to circadian rhythms, it's a clock that's basically programmed in our body. So if you think back to times when people lived on farms and we didn't have electricity.
Shelby HarrisSo the deeper stages of sleep are really those times of quiescence, you're really restoring your body and we have a few different stages of sleep.
Shelby HarrisWhen they [people with insomnia] start worrying about not sleeping, I'll say, "Say the mantra to myself; if I don't sleep tonight, I'll likely sleep tomorrow, and if not tomorrow then definitely the third" because our body has a way of naturally catching up.
Shelby HarrisSo people only focus on getting the really deep sleep, but in reality, we spend almost 60% of the night in the stage two sleep.
Shelby HarrisWhen you're in the more deeper stages of sleep - REM sleep, your body is quiet, but your mind is actually very active. So it's a time when your body and your brain is restoring itself. It's repairing any cell damage that happened during the day, it's really repairing, like I said, repairing your body, but also helps with digestion, helps with memory.
Shelby Harris