Make a digital entrance. Apps that help you track how much and how often you exercise, like
RunKeeper,
Fitocracy,
MyFitnessPal and
Nike+, can be a kick in the pants to work out longer, harder and with more enthusiasm. Thank the Hawthorne effect -- the tendency to act differently when you believe your actions are being observed (even if the only observer is you). As a feel-good bonus, apps like
Plus 3 Network and
Earndit also allow you to accrue points that translate into charitable donations or gift cards and discounts -- just for checking in. One Earndit member donated enough points to buy polio vaccines for 17 children in India. (The Earndit community has inoculated more than 2,000 children against polio )
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