Rein is diagnosed with narcolepsy—a chronic sleep disorder characterized by overwhelming, uncontrollable daytime drowsiness ...

Sleep paralysis is a feeling of being conscious but unable to move or speak right before falling asleep or waking up. It happens when your body is in between stages of sleep and wakefulness.

Sleep paralysis could also be a symptom of narcolepsy, a sleep disorder that causes people to fall asleep involuntarily. Other research suggests sleep paralysis could be caused by jet lag or other ...

Although sleep paralysis is terrifying and can happen at night, this condition is no relation to night terrors. The two are opposites, in a sense: in a night terror, you are asleep but moving around.

What is sleep paralysis? Sleep paralysis is "a condition where you feel paralyzed just before falling asleep or, more commonly, when you first wake up in the morning," says Kevin Walker, MD, the ...

The sleep paralysis episodes involve not being able to speak or move while falling asleep or right upon waking up. This usually lasts for about one or two minutes and is often frightening.

Sleep paralysis often occurs when a person's mind becomes aware while their body is still in a state of muscle atonia, a natural mechanism that prevents us from acting out our dreams.

In some cases, people experiencing sleep paralysis have frightening and even recurring visions. Known as sleep paralysis demons, these terrors don’t haunt nightmares, but reality.

What causes sleep paralysis? According to New York City-based neuropsychologist Dr. Sanam Hafeez M.D., sleep paralysis is caused by being in between a state of wakefulness and sleep at the same time.

In some cases, people experiencing sleep paralysis have frightening and even recurring visions. Known as sleep paralysis demons, these terrors don’t haunt nightmares, but reality.

During sleep paralysis, however, “we regain consciousness before the muscles regain their freedom from REM-induced paralysis,” said Walker, who is also a professor of neuroscience and ...

The first time sleep paralysis struck me was in the winter of 2012. My grandfather had recently died, and I was spending time at my grandmother’s house. After 60 years of marriage, she wasn’t ...