Yes, exercise is good for you. This we know. Heaps of evidence point to the countless benefits of regular physical activity. Federal health officials recommend at least 30 minutes of moderate exercise, like brisk walking, every day.

Studies show that when you adhere to an exercise regimen, you can improve your cardiovascular health, lower blood pressure and improve metabolism and levels of cholesterol and triglycerides. You can reduce diabetes risk and the risk of certain cancers. And, finally, exercise can help you maintain a healthy weight, which can boost all of these benefits even more.

But now, researchers are beginning to suspect that even if you engage in regular exercise daily, it may not be enough to counteract the effects of too much sitting during the rest of the day.