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

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.

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