Energy balance
Prolonged television viewing (sedentary behavior) is associated with a significantly increased risk of type 2 diabetes, cardiovascular disease, and all-cause mortality.
Television viewing is not a neutral activity; it independently increases your risk of diabetes, heart disease, and early death, even if you exercise. The risk rises linearly with time for diabetes and heart disease, and sharply after 3 hours per day for mortality. To mitigate this, treat TV time as a health risk factor and actively limit daily viewing, especially beyond 3 hours, by replacing it with light movement or social interaction.
Prolonged TV viewing was associated with increased risk of type 2 diabetes, cardiovascular disease, and all-cause mortality.
Why this rating
Meta-analysis of 8 prospective cohort studies with large sample sizes (up to 175,938 individuals for diabetes) and long follow-up, though observational design limits causal inference.
Source
Television Viewing and Risk of Type 2 Diabetes, Cardiovascular Disease, and All-Cause Mortality
Anders Grøntved · JAMA · 2011
DOI 10.1001/jama.2011.812
More from this paper
- The association between TV viewing and health risks is partially mediated by diet and obesity (BMI), but an independent risk remains after adjusting for these factors.Good
- Reducing TV viewing time can lead to improvements in BMI, energy intake, and energy expenditure in short-term experimental settings.Moderate
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