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You might think you can get by on 5 or 6 hours’ sleep a night, but people who get less than 7 hours are more likely to have mood or mental health problems.
A severe lack of sleep has been linked to mood disorders, depression, anxiety and Alzheimer’s disease. But much less is known about the effects of skimping on a little sleep each night, missing the recommended amount by an hour or so.
According to the US National Sleep Foundation, most adults should get 7 to 9 …
Article source: https://www.newscientist.com/article/2166808-getting-just-6-hours-of-sleep-is-linked-to-mental-health-issues/