Research

Mixed

High levels of sedentary behavior, specifically television viewing time, are associated with a significantly increased risk of endometrial cancer compared to low levels of sedentary time.

If you watch a lot of television, be aware that this habit is linked to a higher risk of endometrial cancer. This risk is distinct from your exercise routine, meaning that even if you work out, spending many hours sitting and watching TV may still increase your risk. Try to limit continuous viewing time and take breaks to stand or move.

GoodSupportsHIGH confidence
For endometrial cancer, the relative risks were 1.66 (95% CI = 1.21 to 2.28) for TV viewing time...
Daniela Schmid et al. · JNCI Journal of the National Cancer Institute · 2014

Why this rating

Meta-analysis of 43 observational studies with large sample size, though observational design limits causal inference.

Source

Television Viewing and Time Spent Sedentary in Relation to Cancer Risk: A Meta-Analysis

Daniela Schmid et al. · JNCI Journal of the National Cancer Institute · 2014

DOI 10.1093/jnci/dju098

Meta-analysis · 43 studiesCited 361×
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DOI resolved against Crossref · corpus check 2026-06-10

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