How Many Hours Of Sleep You Really Need To Be Getting

Key Points:

• A new study published in Nature identifies a “sweet spot” for sleep duration to promote healthy aging, suggesting that 6.4 to 7.8 hours per night is optimal, which is slightly less than the traditionally recommended eight hours.
• Both insufficient sleep (less than six hours) and excessive sleep (more than eight hours) are linked to accelerated biological aging across multiple organs and increased risk of physical and mental health conditions including obesity, diabetes, heart disease, depression, and anxiety.
• The research utilized advanced organ-specific aging clocks to assess how different organs age at varying rates, highlighting that sleep duration may serve as a marker of overall health rather than a direct cause of aging.
• Experts note that excessive sleep may indicate underlying health issues such as sleep disorders, inflammation, or sedentary lifestyle, which contribute to poorer health outcomes.
• The study also suggests women may require slightly more sleep than men, potentially due to hormonal fluctuations and greater emotional and cognitive demands, recommending an average of about seven hours of sleep for most adults.