Energy balance
Prolonged television watching is independently associated with a significantly increased risk of developing obesity and type 2 diabetes in women, even after adjusting for physical activity levels.
If you watch a lot of TV, be aware that it carries a specific health risk for obesity and diabetes that is not fully negated by your exercise routine. Try to limit TV time to under 10 hours per week and incorporate light activity like standing or walking around the house to mitigate these risks.
Time spent watching TV was positively associated with risk of obesity and type 2 diabetes. In the multivariate analyses adjusting for age, smoking, exercise levels, dietary factors, and other covariates, each 2-h/d increment in TV watching was associated with a 23% (95% confidence interval [CI], 17%-30%) increase in obesity and a 14% (95% CI, 5%-23%) increase in risk of diabetes
Why this rating
Large prospective cohort (Nurses' Health Study), long follow-up, rigorous adjustment for confounders, but observational design limits causal inference.
Source
Television Watching and Other Sedentary Behaviors in Relation to Risk of Obesity and Type 2 Diabetes Mellitus in Women
Frank B. Hu et al. · JAMA · 2003
DOI 10.1001/jama.289.14.1785
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