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A team of Chinese scientists from Wuhan University of Science and Technology conducted a series of studies to find out why daytime sleep is deadly, EurekAlert reports.
What is the risk?
People with an average age of 62 who napped during the day or slept nine or more hours at night had an increased risk of stroke.
The six-year study involved 31 750 Chinese participants with an average age of 62
Volunteers did not have a history of stroke or other health problems at the start of the follow-up. A total of 1557 cases of stroke were recorded.
Survey results
According to the survey results, eight percent of participants slept 90 minutes or more and 24 percent slept nine or more hours per day. They had an increased risk of stroke – 23 % higher than those who slept seven to eight hours per day. For those who slept for a long time and also napped during the day, however, the likelihood of stroke was 85 % higher.
