However, some research shows that major stressors may increase REM sleep but reduce deep sleep. REM rebound, which is when we ...

More people are becoming obsessed with sleep trackers, causing insomnia and making sleep worse, experts say. Here’s how to ...

A new study from The Australian National University (ANU) suggests that poor sleep may contribute to brain shrinkage and ...

A curious attitude, mind wandering, age, and the changing of the seasons are some of the factors that influence the ability ...

Puppies sleep a lot to support their rapid development, but do they dream? What do they dream about? Click here to find out!

Discover what causes sleep talking, whether your nighttime chatter reveals hidden secrets, and how to reduce these nocturnal conversations with expert tips.

Vivid dreams happen most often during the rapid eye movement (REM) sleep stage, when the brain is particularly active. Some people, especially women, said they were able to recall their dreams ...

Dogs, like humans, go through several sleep cycles—wakefulness, rapid eye movement (REM) sleep and non-rapid-eye-movement sleep. In the REM sleep period, the most memorable and vivid dreams occur.

REM sleep behavior disorder is characterized by acting out dreams, which may include shouting, kicking and punching during sleep.

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or REM, sleep, which is the stage in which we dream. Experts say about 50% of your night should be in light sleep. Deep and REM sleep: During deep sleep, the brain sweeps out toxins and dead cells ...