One Type of Sleep Linked to Lower Risk of 83 Diseases, Study Finds
Summary
A study from Chinese universities found that getting more REM sleep—a stage of sleep involving dreams—is linked to a lower chance of over 80 diseases. More deep sleep, which helps the body rest and repair, was connected to lower risks of seven diseases. The research used data from over 95,000 people in the U.K. followed for about nine years.Key Facts
- REM sleep is the stage when people dream and it supports brain functions like memory and emotional health.
- Deep sleep is the stage when the body repairs tissue and cleans waste from the brain.
- More REM sleep was linked to lower risks of diseases including heart failure, Parkinson’s disease, multiple sclerosis, dementia, and Alzheimer’s.
- More deep sleep was linked to lower risks of diseases such as type 2 diabetes, major depression, sleep apnea, and Parkinson’s disease.
- Light sleep was connected to higher risks of depression but lower risks of heart failure.
- Being awake longer at night increased risks of abdominal pain, anxiety, and depression.
- Sleeping six to eight hours per night was linked to better sleep quality and lower disease risks.
- The study used wrist devices to track sleep patterns in over 95,000 people from the U.K. Biobank.
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