More REM sleep linked to lower risk of 83 diseases

A large study tracking more than 95,000 people suggests that how individuals sleep may be linked to their risk of developing a wide range of diseases. Researchers found that people who spent more time in rapid‑eye‑movement (REM) sleep had lower risks of 83 conditions, including dementia, heart failure and Parkinson’s disease, while those who obtained more deep sleep showed lower risks of conditions such as type 2 diabetes and major depression. The study found that increased REM sleep was associated with lower risk of 83 conditions, and increased deep sleep was linked to lower risk of type 2 diabetes and major depression.