A new study reveals how the brain reprocesses and refines memories during sleep, particularly those related to spatial ...

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

Researchers sought to better understand the connection between REM sleep patterns in patients with either insomnia or MDD.

Researchers from ISTA discovered that sleep helps solidify spatial memories by reorganizing neuronal patterns. During non-REM ...

Stage 1: The lightest sleep or N1 The first stage of sleep is the lightest stage of sleep and is also a non-REM stage (N1).

"Deep sleep builds your immune system, and REM sleep regulates and fine-tunes it," says Darwall-Smith agrees. During deep ...

Why is sleep so important for learning and memory? Neuroscientists from the Csicsvari group at the Institute of Science and Technology Austria (ISTA) provided new insight into this essential function ...

Overall, REM sleep occupies about one-fifth of total rest time in adults. Yet stages 1 through 4 have been labeled as non-REM sleep, or NREM—80 percent of sleep is defined by what it’s not.

There are two different types of sleep. The first is non-REM (rapid eye movement) sleep, which happens in four stages. “Stages one and two are the light form, then stages three and four are that ...

Late REM sleep may promote memory formation at a second stage, only after periods of early ... Subjects were healthy non-smokers (19–35 years old), with normal or corrected to normal vision.

Dreams are a fascinating mystery – whether it was a terrifying nightmare or a vivid fantasy, most of us can still vividly recall at least one. Songs have been composed and scientific discoveries ...