Skip to content

Fitness & Exercise

Too Much TV May Have Deadly Toll

Each Hour of TV Daily Associated With an 18% Increased Risk of Death From Cardiovascular Disease
Font Size

Avoiding a Sedentary Lifestyle

Dunstan says the implications were simple and clear -- too much TV time can be deadly.

“In addition to doing regular exercise, avoid sitting for prolonged periods and keep in mind to move more [and] more often,” Dunstan says. “Too much sitting is bad for health.”

He and his co-authors note that previous research has shown that moderate to vigorous exercise reduces premature death. Less has been known, though, about the deadly consequences of sedentary behavior. The evidence, they write, is now clear.

“These novel findings from a large population-based cohort of Australian men and women indicate that prolonged television viewing time is associated with an increased risk of all-cause and [cardiovascular] disease mortality,” the researchers write. “Each one-hour increment in television viewing time was found to be associated with an 11% and an 18% increased risk of all-cause and [cardiovascular] disease mortality."

“Furthermore, relative to those watching less television, there was a 46% increased risk of all-cause and an 80% increased risk of [cardiovascular disease] mortality in those watching four [or more] hours of television per day.”

That was true even when factoring in other known risks, such as smoking, blood pressure, cholesterol, and diet, the authors say, as well as leisure-time exercise and waist circumference, the study says.

1 | 2

Healthy Living Tools

Ditch Those Inches

Set goals, tally calorie intake, track workouts and more, all via WebMD’s free Food & Fitness Planner.

Get Started

Today on WebMD

pilates instructor
15 moves that get results.
woman stretching before exercise
How and when to do it.
couple working out
Moves you can do at home.
woman exercising
Strengthen your core with these moves.
man exercising
knees to chest
Man looking at watch before workout
Overweight man sitting on park bench

Pollen counts, treatment tips, and more.

It's nothing to sneeze at.

Loading ...

Sending your email...

This feature is temporarily unavailable. Please try again later.


Now check your email account on your mobile phone to download your new app.

pilates instructor
jogger running among flowering plants
woman walking
woman doing pushups