On average, 80% of American adults watch 3.5 hours of television per day and multiple observational studies have demonstrated a link between television viewing and poorer health. A new study has revealed that prolonged television viewing contributes to eight leading causes of death in the United States.
Previous studies have reported a relationship between TV viewing and elevated risk of death from cancer and cardiovascular disease. In this study, researchers at the National Cancer Institute analyzed more than 221,000 individuals aged 50-71 years old who were free of chronic disease at study entry.
The team confirmed the association for higher mortality risk from cancer and heart disease. They also identified new associations with higher risk of death from most of the leading causes of death in the US, such as, diabetes, influenza/pneumonia, Parkinson's disease, and liver disease.
The study appears in the American Journal of Preventive Medicine.