deaths

Blood clot deaths tied to hours of daily TV time

There are more than 200,000 cases of pulmonary embolism, which usually begins as a blood clot in the leg that travels to the lung, in the U.S. each year, according to the National Library of Medicine. It can permanently damage lung tissue, other organs, or cause death, but many people who have it have no symptoms.

Pulmonary embolism is less common in Japan than in Western countries, said study coauthor Dr. Hiroyasu Iso, professor of public health at Osaka University Graduate School of Medicine, but Japanese people are becoming increasingly sedentary.