Researchers found that each hour a day spent watching TV was linked with an 18% greater risk of dying from cardiovascular disease, an 11% greater risk of all causes of death, and a 9% increased risk of death from cancer.
….People who watched more than four hours a day showed an 80% greater risk of death from cardiovascular disease and a 46% higher risk of all causes of death compared with those who watched fewer than two hours a day, suggesting that being sedentary could have general deleterious effects. The numbers were the same after the researchers controlled for smoking, high blood pressure, high cholesterol, an unhealthy diet and leisure-time exercise.
OK, I guess this is really no surprise or anything. Still: get off the couch and do something useful instead! Like blogging.