Research
Mixed
Prolonged sitting in specific contexts (TV-viewing or occupational sitting) does not show a significant association with all-cause or cardiometabolic mortality in the short term (3.3 years), unlike total sitting time.
Don't panic about watching TV or sitting at work specifically. Focus on reducing your total hours of sitting throughout the entire day.
GoodRefutesHIGH confidence
TV-viewing time and occupational sitting showed no or borderline significant associations with all-cause or cardiometabolic disease-related mortality over the same follow-up period.
Why this rating
Same high-quality cohort data as N1, but the null finding for specific contexts is robust within the study's timeframe.
Source
Sedentary behaviour and risk of mortality from all-causes and cardiometabolic diseases in adults: evidence from the HUNT3 population cohort
Josephine Y. Chau et al. · British Journal of Sports Medicine · 2013
DOI 10.1136/bjsports-2012-091974
cohort · n=50817Cited 175×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
Related findings · Mixed
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