Research
Mixed
Spending 9.5 or more hours per day sedentary is associated with a statistically significantly higher risk of death.
Avoid sitting for more than 9.5 hours a day. If you have a desk job, incorporate standing breaks and light movement throughout the day. The risk of death increases significantly once sedentary time exceeds this threshold, even if you exercise moderately.
StrongSupportsVERY_HIGH confidence
A statistical significantly higher risk of death was observed for sedentary times of 9.5 or more hours daily
Why this rating
Large sample size and harmonized meta-analysis.
Source
Dose-response associations between accelerometry measured physical activity and sedentary time and all cause mortality: systematic review and harmonised meta-analysis
Ulf Ekelund et al. · BMJ · 2019
DOI 10.1136/bmj.l4570
Meta-analysis · 8 studiesCited 1,725×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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