Research

Hormonal

Average daily sleep duration exhibits a J-shaped association with hypertension, major depressive disorder, and generalized anxiety disorder, where both short (5h) and long (10h) durations increase risk compared to the median (6.8h).

Aim for approximately 7 hours of sleep per night. Both sleeping significantly less (5 hours) or significantly more (10 hours) is associated with higher risks of hypertension, depression, and anxiety. Use your wearable to track your average daily sleep duration and adjust your schedule to stay within the moderate range.

GoodQualifiesHIGH confidence
We identified significant nonlinear, J-shaped relationships between average daily sleep duration and hypertension (P for nonlinearity = 0.003), major depressive disorder (P < 0.001) and generalized anxiety disorder (P < 0.001)... Participants who had an average daily sleep duration of 5 h had 29% increased risk of hypertension... 64% increased risk of major depressive disorder... and 46% increased risk of generalized anxiety disorder... Participants with an average daily sleep duration of 10 h had 61% increased risk of hypertension... 163% increased risk of major depressive disorder... and 130% increased risk of generalized anxiety disorder
Neil S. Zheng et al. · Nature Medicine · 2024

Why this rating

Large longitudinal study with objective data; J-shaped curve is a robust finding across multiple conditions.

Source

Sleep patterns and risk of chronic disease as measured by long-term monitoring with commercial wearable devices in the All of Us Research Program

Neil S. Zheng et al. · Nature Medicine · 2024

DOI 10.1038/s41591-024-03155-8

cohort · n=6785Cited 167×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →