REM and deep sleep, not just total sleep time, associated with disease risk

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A study published in PLOS Medicine finds that higher amounts of REM and deep sleep are linked to lower risks of multiple diseases, while less than five hours of total sleep is associated with increased disease risk. The research is led by Shengzhi Sun from Capital Medical University, China.

Greater amounts of REM and deep sleep were associated with lower risks of dozens of diseases, and less than 5 hours of total sleep was associated with high disease risks, according to a new study published Sept. 17 in the journal PLOS Medicine by Shengzhi Sun of Capital Medical University, China, and colleagues.