http://www.wellnesstips.ca/dark.htm Thats the basics on how light effects our sleep. The idea is that the body uses very different chemicals during the day than during the night, so when there is light on our bodies, we absorb that light and release chemicals into our system that makes us think its morning. Nocturnal animals also don't sleep in the light, they sleep in places like dark caves or in trees where the light can't reach them.
Ah, you mean the effect of light on the body! I agree with you there, but it's not really the same as 'replenishing chemicals'. I mean, I sometimes take a nap with the lights on, so the effect is not especially strict, but of course it's true that the light/dark cycle, whether natural or artifical, affects how you sleep.
Technically we dream throughout sleep,yes. But (http://en.wikipedia.org/wiki/Rapid_eye_movement_sleep) we remember our dreams that occur during REM. And, those are obviously the dreams we are talking about, yes? If you wake someone up in the middle of the night, they can't tell you what their dreams were during the rest of the cycle, its typically the REM cycle's dreams.
Sure, but I don't believe REM-sleep dreams are more relevant or more important than deep-sleep dreams just because people remember them more often. Why should there be a difference between REM-sleep dreams and deep-sleep dreams?
You can dream without sleep. Its called Lucid dreaming. You're in a kind of half sleep half wake situation, but it still exists. That way you can control your dreams because you are aware of them.
Haha, no, that doesn't count. When you find yourself having some degree of consciousness or agency while in a dream, it doesn't mean you're not still sleeping, aka lying limp on your bed with practically zero situational awareness.
And, just because the two processes (sleep and dreaming) happens at the exact same time doesn't mean they cannot serve two different functions. And, we are more then able to monitor brain activities during sleep to pinpoint when the more active dreams are happening.
Yeah, that's the thing. I
think that sleeping and dreaming are just two sides of the same coin, and dreams are just reflective of the consolidation and recovery processes that are necessary for a good night's rest. And if I'm interpreting correctly, you
think that dreaming is its own process that takes place on top of the aforementioned processes as a complementary function. Whether it's one or the other is pretty damn hard to find out. I'm having trouble thinking of an experiment that can tell. Maybe if I sleep on it I'll know.
Also, I'm not sure what you mean by 'more active dreams'; I assume those are the dreams in REM-sleep, but how can you tell if it's the dreams that are active, or just the brain itself that's in a more excited state in REM-sleep, compared to other cycles?
This might also be interesting: A researcher at my university specializes in the role of sleep in memory. She gave a couple of lectures in the Learning & Memory course I followed.
Some of her publications could be relevant. Really nice lady, too; she was voted the faculty's best teacher two years ago.
Sorry, but some better references would be good. That website has the work "QUACK" written all over it. Especially the references to the CHEK institute, a glorified chiropractic school. I have nothing against chiro, they are wonderful, and have helped me with a lot of physical issues over the years, but when they try to go and explain everything in their own terms, without scientific backup, I have to stop listening...
The website may be dubious (COMIC SAAAAAANS) but you'd do better to check out the book they're referencing. According to the reviews on
Amazon, the book really does have the right ideas about sleep, nutrition and health, but the author just doesn't know what she's talking about in other respects. So, good message, bad messenger. Still better than a bad message coming from a good messenger.
But this isn't DISCUSS, so feel free to talk about the time you were riding a giraffe through a field of daffodils. Or just split this bit off, I don't care.