the early morning hours killing two and injuring dozens. what went wrong with south carolina and those popular fitness trackers reveal a lot about us. how many steps we take? how many calories we burn? but when they're worn by u.s. troops could they reveal their locations to america's enemies? this is the dexcom g5 mobile continuous glucose monitoring system. a small, wearable sensor measures your glucose every 5 minutes and sends the data to a dexcom receiver. i feel like, oh my gosh, i'm in control now. with the dexcom g5 mobile, you always know the direction and speed your glucose is heading. something a fingerstick can't tell you. and it's easy to see your trend line. with dexcom, i know where i'm heading and i can take action without pricking my finger. dexcom, it's just really easy to use, and i have the confidence that i have all kinds of customer support. dexcom helps lower a1c and improves quality of life. if you're over 65