DWM X SLEEP MAX 9 HRS X MID DAY MAX 1.5 HRS TO REDUCE RISK OF STROKE

Sleep Duration, Midday Napping, and Sleep Quality and Incident Stroke

Neurology

TAKE-HOME MESSAGE

• The authors of this Chinese study found that sleeping longer is associated with a higher risk of stroke. This association was found both for longer sleep at night (≥9 hours; HR, 1.23) and midday naps longer than 90 minutes (HR, 1.25). This association was not noted for people who slept fewer than 6 hours per night. There was a notable increase in stroke risk associated with poor sleep quality. 

• Long sleep duration and midday napping appear to be associated with the risk of incident stroke. It remains unclear why sleeping fewer hours does not have a similar association.

– Andrea Dotson, MD, MSPH