A sampling of highest-rated health apps for your smartphone, from the Harvard Health Letter

So-called smartphones like the iPhone and Android are actually powerful, pocket-sized computers capable of running programs called applications, or "apps." The November 2010 issue of the Harvard Health Letter describes some of the highest-rated and most widely used apps for common health problems. These are just a few of the apps reviewed in this issue: Tap and Track is an all-in-one app for diet and exercise. You enter what you eat, your physical activity, your actual weight, and your target weight. It computes your nutritional intake. Each time you enter a snack or plug in a workout, you'll receive a nutritional tally as well as the number of calories you have left for the day. The $3.99 app can generate graphs and spreadsheets tracking your progress, which can be e-mailed to your computer. Glucose buddy tracks glucose readings you enter four times a day, as well as food consumed, exercise, and medication. You can set alarms to remind you to take the glucose readings.
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