It is now advised that for every hour of sitting in office, make sure to take time to stand and walk for at least 10 minutes. This practice not only can curb obesity but also can increase your metabolic rate and help curb chronic diseases like diabetes and heart disease.
It is therefore not surprising that in an article published in JAMA , a study showed further a strong link between TV viewing and the risk for Diabetes and Heart disease risk:
Prolonged television (TV) viewing is the most prevalent and pervasive sedentary behavior in industrialized countries and has been associated with morbidity and mortality. However, a systematic and quantitative assessment of published studies is not available.
To perform a meta-analysis of all prospective cohort studies to determine the association between TV viewing and risk of type 2 diabetes, fatal or nonfatal cardiovascular disease, and all-cause mortality.
DATA SOURCES AND STUDY SELECTION:
Relevant studies were identified by searches of the MEDLINE database from 1970 to March 2011 and the EMBASE database from 1974 to March 2011 without restrictions and by reviewing reference lists from retrieved articles. Cohort studies that reported relative risk estimates with 95% confidence intervals (CIs) for the associations of interest were included.
Data were extracted independently by each author and summary estimates of association were obtained using a random-effects model.
Of the 8 studies included, 4 reported results on type 2 diabetes (175,938 individuals; 6428 incident cases during 1.1 million person-years of follow-up), 4 reported on fatal or nonfatal cardiovascular disease (34,253 individuals; 1052 incident cases), and 3 reported on all-cause mortality (26,509 individuals; 1879 deaths during 202,353 person-years of follow-up). The pooled relative risks per 2 hours of TV viewing per day were 1.20 (95% CI, 1.14-1.27) for type 2 diabetes, 1.15 (95% CI, 1.06-1.23) for fatal or nonfatal cardiovascular disease, and 1.13 (95% CI, 1.07-1.18) for all-cause mortality. While the associations between time spent viewing TV and risk of type 2 diabetes and cardiovascular disease were linear, the risk of all-cause mortality appeared to increase with TV viewing duration of greater than 3 hours per day. The estimated absolute risk differences per every 2 hours of TV viewing per day were 176 cases of type 2 diabetes per 100,000 individuals per year, 38 cases of fatal cardiovascular disease per 100,000 individuals per year, and 104 deaths for all-cause mortality per 100,000 individuals per year.
Prolonged TV viewing was associated with increased risk of type 2 diabetes, cardiovascular disease, and all-cause mortality.
The study clearly shows that for every two hours of television watched daily,
- Diabetes development is increased by 20%,
- Cardiovascular disease is increased by 15%, and
- All-cause mortality and death is increased by 13%.
Obviously the habit of watching TV correlates with the amount of popcorn, chips, sugary drinks that accompany the activity. Meaning this practice of prolonged TV viewing is worst that any passive sedentary activities like driving or tinkering on a computer. So guys, it is therefore not yet late to adopt on a different lifestyle. Learn to change and remember to include your children on this health change. Let them see you as parents embarking on a healthy lifestyle so they also can adopt to it. No TV on weekdays for my kids but this rule is solely to let them focus on studying BUT I let them join me everyday of our bonding of fun run , biking and swimming. Its Sunday… so its TV time later after our round of running….