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how much REM sleep do you need? Plus, they fill us in on what exactly happens during the REM stage and how to make sure you ...

The locus coeruleus is emerging as a major new area of research interest, with many important functions such as regulating ...

You need about 1.5 to 2 hours of deep ... heart rates also increase to near-awake levels in REM sleep. It’s no surprise that with so much near-wakefulness, this stage is when most of your ...

We’ve written before at HuffPost UK about how much rapid eye movement, or REM, sleep you need per night. But to be honest, I hadn’t even heard of the term “core” sleep until recently.

Most people spend about one-third of their day asleep. While scientists are still unsure exactly why we need sleep, they do know it rejuvenates the body and mind, making it critical for our daily ...

A new study showed that people who took longer to enter this dream phase of sleep had higher levels of amyloid beta and tau, ...

REM, deep and light, although you actually cycle through five stages of sleep each night. Knowing how much time you spend in each sleep stage can help you understand your energy levels and ...

We don’t know if the correlation is causal, but REM sleep latency can potentially serve as a marker and help with the early detection of AD [Alzheimer’s disease]. More research is needed to ...

There are tell-tale signs when you don’t get enough REM sleep ... to tell us more about this essential sleep stage including how much we need, how to tell when we’re not getting enough ...