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Sleep habits vary by race, Northwestern study finds, with whites sleeping easiest

A new study links the length and quality of sleep to race, with whites found to sleep significantly longer and better than people in other racial groups.Researchers at Northwestern University Feinberg School of Medicine monitored the sleep habits of about 500 randomly selected adults in Chicago for seven days and found that w

hites slept, on average, 7.4 hours every day, while Hispanics and Asians slept 6.9 hours and African Americans 6.8 hours.

“We found that black adults have the worst quality of sleep and Asians experience the highest amount of daytime sleepiness of the four races,” said Mercedes Carnethon, an associate professor of preventive medicine at Northwestern.

The results of the federally funded study were presented Wednesday at a conference in Boston of the Associated Professional Sleep Societies.It also found that blacks tended to wake more during the night and that Asians tended to report the most daytime sleepiness.

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