Too Much Sitting May Raise Type 2 Risk
Spending most of the day sitting, researchers report, is associated with elevated blood glucose and LDL ("bad") cholesterol levels. The results of a study suggest that couch potatoes are at an increased risk for developing type 2 diabetes, though the findings do not prove that sitting causes diabetes. More evidence came from a separate study that found that people who stand and walk for much of the day have better insulin sensitivity and blood fat levels than people who mostly sit around, even if the sitters spend an hour a day exercising. The authors conclude that exercise, while beneficial, cannot compensate for the negative effects of long stretches of inactivity.
Source: PLOS One, Feb. 13, 2013; Diabetologia, Feb. 27, 2013