The number of technical tools available to help patients live healthy lifestyles or control chronic health conditions has grown considerably during the past few years. But the percentage of patients who use some form of technology, such as mobile apps, to track health indicators has remained virtually unchanged for three years.The Pew Internet & American Life Project published a report Jan. 28 that found 69% of U.S. adults track at least one health indicator such as diet, exercise or weight. The survey of 3,014 adults conducted between Aug. 7 and Sept. 6, 2012, found that 49% monitor their progress in their heads, 34% track the information on