According to a new study
based on data collected for 19 years, the more television you watch, the greater your risk for a pulmonary embolism.
After adjusting for other factors, they found that compared with watching TV less than two and a half hours a day, watching for two and a half to five hours increased the risk for a fatal clot by 70 percent, and watching more than five hours increased the risk by 250 percent. For each extra two hours of watching, the risk of death rose 40 percent. The effect was independent of physical exercise.
To lessen the risks associated with prolonged sitting in front of the television, they recommend to take a break, stand up, walk around, and drink plenty of water. Although these are pretty much common sense to those in health care, it might be worthwhile passing on to your couch potato relatives, friends, and patients.