If Your Derriere Is Deskbound...
Run to catch the elevator. Shift your La-Z-Boy to the upright position and back again 25 times. Overweight volunteers who racked up just 30 minutes a day of short, sporadic activity—one minute here, six there—had significantly higher cardiorespiratory fitness levels than true couch potatoes, finds a study at Queen's University in Ontario. The key is breaking up sedentary time: If you sit for more than two hours, your "good cholesterol" drops along with your metabolic rate. A study published in Diabetes Care found that just standing up for one minute every hour during, for instance, a 10-hour slug-a-thon leads to a healthier blood lipid profile and body mass than sitting all day and being active for 10 consecutive minutes at the end.