If you experience grogginess and fatigue even after hours of sleep, it indicates that you might not be getting enough of the quality sleep you need to feel refreshed and rejuvenated.

It turns out that the fundamental theory behind cognitive shuffling, though conjectural, “aligns with established principles in cognitive neuroscience and sleep psychology,” Dr. Leah Kaylor, a ...

If you've been struggling to sleep well, it might be because you're in one of the six stages of sleep deprivation. What to know. Giselle Castro-Sloboda Fitness and Nutrition Writer I'm a Fitness ...

“Poor sleep quality has been linked to Alzheimer’s disease,” says W. Christopher Winter, MD, a neurologist and sleep medicine physician with Charlottesville Neurology and Sleep Medicine and ...

The following chart can help a person figure out when they need to be going to bed to get 8 hours of sleep a night. The NSF report that, on average, people take 10–20 minutes to fall asleep. The ...

But it also aims to address anxieties and negative beliefs about sleep. Much of the time, insomnia can lead to the feeling that sleep has become “unpredictable and broken,” Dr. Prather said.

We analyzed the research on 5 sleep supplements. Here’s what actually works. No supplement is going to dramatically improve your sleep, but some may offer modest benefits with minimal side effects.

Even so, it could be “a big deal for patients,” Dr. Parthasarathy said. Many people with sleep apnea are so averse to using CPAP machines that they don’t seek treatment. He said he would ...