Getting enough sleep is crucial for maintaining brain health, reducing the risk for neurodegenerative and cardiovascular disease, bolstering the immune system, sustaining good mental health, and recovering from the stressors of the day. The American Academy of Sleep Medicine and Sleep Research Society recommends that adults (over 18 years of age) should get at least 7 hours of sleep per night.[1] Sleep deprivation is associated with obesity, and this relationship may be due to changes in eating, activity levels and hormone levels.[2]
Why do we need sleep?
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•Last Updated: May 16, 2025
Sleep is essential for brain health; it reduces the risk of diseases, supports the immune system, and maintains mental health, and adults are recommended to get at least 7 hours per night. Additionally, sleep deprivation is associated with obesity, potentially due to changes in eating habits, activity levels, and hormones.