Medically reviewed by Katrina Carter, DPT Core exercises like crunches and planks help improve your balance and posture.Side inclines with a twist and teasers target your oblique muscles.Exhaling ...

There are so many exercises you can use a stability ball for, especially when it comes to targeting your core. Why? Because this fitness tool, otherwise known as an exercise or Swiss ball, challenges ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? An exercise ball may look like a toy (it's a huge bouncy ball!), but it can ...