Skip crunches. Try chair squats, wall push-ups, step backs, and standing marches to boost calorie burn and flatten lower belly.
Crunches not working anymore? Do these 4 joint-friendly moves and feel your lower belly tighten.
When you think of “belly-flattening” exercises, what most likely comes to mind are crunches. Lie down, curl up, repeat. But after 45, many people notice ... [5353 chars]

