2. Sweep: Start with basic abs tuck (standing crunch). For that you have to lift one knee using the abs, and bend the other knee to sit slightly on the ground. Bring the rib cage to the bellybutton so that the spine is in C-curve position. Simultaneously, squeeze the oblique on one side to crunch while reaching down for the opposite foot. Do 10 repetitions for each side, then do 10 again (total of 20, alternating after 10).
In a way, moderate-intensity physical activity is that "magic pill" a lot of people are looking for, because the health benefits go beyond keeping your waistline trim: Not only can it reduce your risk of cancer, stroke, diabetes and heart attacks, but studies have shown that physical activity can significantly improve the moods of patients with major depressive disorders.