Running around like a mad woman—taking care of your family, your work, your relationships, and, lastly, yourself—makes it easy to skip the gym. Quit feeling guilty about it and start sneaking in ways to get your heart rate up and burn fat without having to stopping your 100-mile-per-hour train. Simple things, like taking the stairs instead of the elevator and downloading cool, motivating fitness and nutrition apps (such as Nike Training Club and Fooducate), can make a difference. Source: Marvin Foster, a spin instructor at SoulCycle
