Hold the Phone for Vital Signs, Worcester Polytechnic Institute/Gateway Park Study  
10/6/2011 9:20:53 AM

An iPhone app that measures the user's heart rate is not only a popular feature with consumers, but it sparked an idea for a Worcester Polytechnic Institute (WPI) researcher who is now turning smart phones, and eventually tablet devices, into sophisticated medical monitors able to capture and transmit vital physiological data.