Even though more Americans are exercising, rates of obesity and smoking have not changed.  A survey by the U.S. Centers for Disease Control and Prevention found that obesity rates remained at around 28 percent of adults, the same as in 2008.

However, 34.7 percent claimed that they engaged in regular leisure physical activity, up from 31.9 percent in 2008.

Reuters reports:

“Health experts and the U.S. government both recommend getting daily exercise -- about an hour a day of moderate exercise for most adults -- to keep weight off and prevent heart disease, diabetes and cancer.”