Parents don’t bring cupcakes in for celebrations at McEver Arts Academy. In fact, other than lunches brought from home, there isn’t a lot of outside food in the school. Students are encouraged to exercise through physical education classes, daily recess and even special classes on Fridays where the children can experience such opportunities yoga, dance and adventures in fitness classes. “I think we’ve done a lot of things here that have kind of changed the culture of how we do our day-to-day,” said Gary Gaddy, a McEver teacher who is the school’s wellness champion overseeing the program there. The effort to encourage students to live healthier lives isn’t just at McEver. Since 2011, Hall County Schools have sought to make encouraging healthier lifestyles a priority in the schools. And the efforts appear to have paid off. A total of 15 schools in the district were named to the “America’s Healthiest Schools” list released last week by the Alliance for a Healthier Generation — nearly half of the total number of schools in Georgia to receive the honor. Nationally, 323 schools were named to the list.