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How much sleep do people really need for optimal brain health?

Published guidelines do recommend that adults get seven to nine hours a night of sleep. Seven to nine hours is optimal on the general population level. Obviously individuals may have different needs. We consider 6 hours or under to be associated with co-morbidities later in life, including a higher risk of death. And there have also been some studies that have noted that longer sleep durations, like nine to 10 hours a night may have some association with poorer outcomes.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.