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The University of Glasgow’s Professor Naveed Sattar was sceptical of the research, believing they overestimated the impact of reduced TV screen time on heart disease risk.
Professor Sattar said: “There is abundant other evidence that increasing activity time by replacing time spent sitting help slower body fat levels and prevents weight gain, improves blood pressure and blood fat levels, and lowers diabetes risks.
“All such improvements, in turn, are known to lessen heart attack and stroke risks.”
It’s not so much that watching TV increases heart disease risk, but rather the subsequent lack of activity that raises the risk.