A 2023 study found that shorter sleep duration causes reduced brain cortical thickness. Sleep disorders increase the risk of Alzheimer’s, stroke, and cognitive decline. Chronic sleep deprivation ...

Please provide your email address to receive an email when new articles are posted on . Sleep is a vital, non-waking function of the body that impacts the glymphatic system. Failure of the glymphatic ...

Lymph is the fluid in your lymphatic system, also called lymphatic fluid. Blood reaches tiny capillaries that have small holes in them to let some of the fluid escape or seep out into the tissues.

Past age 50, men are much more likely to have REM sleep behavior disorder than women. Jose Luis Pelaez/Stone via Getty Images Every night, you go through four to five sleep cycles. Each cycle, lasting ...