Research
Mixed
High television viewing time is significantly associated with increased all-cause and cardiovascular disease mortality, independent of physical activity levels.
If you watch a lot of TV, be aware that it increases your risk of early death, even if you exercise regularly. To mitigate this, try to stand up or move briefly every 30-60 minutes rather than sitting for hours continuously.
GoodSupportsHIGH confidence
high levels of television viewing time were significantly associated with increased all-cause and cardiovascular disease mortality... the sitting time-mortality relationships were apparent even among those who were physically active
Why this rating
Based on longitudinal epidemiological studies (AusDiab, Canada Fitness Surveys) with large sample sizes and long follow-up, though observational.
Source
Television Viewing Time and Mortality
David W. Dunstan et al. · Circulation · 2010
DOI 10.1161/circulationaha.109.894824
narrative_reviewCited 833×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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