I grew up doing gymnastics, so core training has always been a big part of my workout routine. But since having children, I've had to work harder to keep up my abs flat and toned than ever before. If ...

When you think of a fit physique, you likely picture "flat abs" or "six-pack" abs, though how long it take to get abs and maintaining them is no small feat. As we age, muscle mass decreases and belly ...