Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

According to a sleep survey by YouGov conducted in 2024, around 38% of Brits say that they ‘rarely’ feel well-rested after a ...

REM stands for rapid eye movement — a stage in the sleep cycle when your brain is almost as active as when you’re awake. Getting enough REM sleep is crucial, as it helps you store information and ...

During REM sleep, your heart rate increases, your blood pressure elevates, and your eyes move. REM sleep may also be the time when your brain processes emotions and solidifies memories. Your body ...

healthy. Bodybuilders, for example, rely on deep sleep to boost levels of growth hormone, which builds muscle and burns fat.

While it is certainly true that rapid eye movement (REM) sleep functions, in part, to promote a healthy waking mind, there are compelling reasons to believe that the opposite is the case as well: the ...

What is REM sleep disorder? REM sleep disorder (RBD) is a type of parasomnia associated with synucleinopathies ––a diverse group of neurodegenerative disorders thought to share a common pathologic ...

No one should have to sleep with the fishes, but new research on zebrafish suggests that we sleep like them. Sleeping zebrafish have brain activity similar to both deep slow-wave sleep and rapid eye ...

Our sleep is marked by cycles of distinct brain activity. The most well-known of these is probably rapid eye movement, or REM sleep, which is characterized by loss of muscle control leading to ...