What do you never leave home without? Or if you do, suddenly you feel lost and disconnected - your phone. Whether you are an iPhone, Blackberry, or Android user, odds are you depend on your phone for doing much more than just making phone calls. Apps are simply applications that you can download to your phone to make life easier. Many are free and the uses are endless. The world's second-largest app store, GetJar, predicts downloads of mobile apps will reach 50 billion by 2012. It is only natural that this rapidly growing industry would target the fitness and weight loss markets. But are the new apps accurate? How can they help you reach your goals?

To read this month's column, go to http://www.ncpad.org/fitt/fact_sheet.php?sheet=835.