An estimated 30 percent of the population in San Antonio suffers from obesity-a problem that leads to a variety of serious medical conditions, including diabetes.  So disease prevention, through exercise, represents an important step in keeping people healthy. The San Antonio Medical Foundation, through its wellness component, has invested more than $400,000 in a paved walking/jogging trail on its property in the South Texas Medical Center.  Because there are no other trails or parks in the Medical Center area, the trail will meet a growing need for public space where San Antonians can work on their individual wellness programs. Full Story.