The findings suggest that “physical activity was not enough to prevent weight gain,” Dugas said. Surgeon General’s physical activity guidelines, which recommend that people exercise at a moderate pace for at least 2 and a half hours per week. The average weight of both the men and women in Ghana was 139 lbs. (This is not typical, as most people usually gain weight over time.) It’s not entirely clear why exercise may not help people lose weight, or may sometimes even be linked to weight gain.
Source: Huffington Post February 17, 2017 18:24 UTC