Too Much Time Sitting Watching TV Associated With Increased Risk of Cardiovascular Disease
Previous studies have linked spending too much time sitting down
to an increased risk of being overweight and developing type 2 diabetes or
heart disease. A new study compared the effects of too much time sitting watching
tv and sitting at work and found that time sitting watching tv is associated
with a higher risk of cardiovascular disease and death.
Participants included 3,592 African American adults who took part
in the Jackson Heart Study. Participants reported how much time they spent
sitting while watching tv and sitting while working. They also reported how
much time they spent exercising. They were followed for an average of 8.4
Participants who reported watching 4 or more hours of tv per day
had a 50% greater risk of cardiovascular events and death compared to those who
spent less than 2 hours per day watching tv. However, participants who reported
sitting the most at work had the same risk of cardiovascular events and death
as those who reported sitting the least.
In addition, participants who reported watching 4 or more hours
of tv per day and engaged in moderate to vigorous exercise at least 150 minutes
per week did not have an increased risk of cardiovascular events or death.
The study was conducted by researchers from Columbia University
Vagelos College of Physicians and Surgeons. It was published on July 2, 2019 in
of the American Heart Association.