New mother Sonnalli Seygall always gives fitness and wellness inspiration. The star, who recently gave birth to her daughter Shukar, shared her fitness journey during pregnancy. Sonnalli is quite ...

These are my favorite stability ball exercises for building core strength and stability. The stability ball, also known as the "swiss ball" in the US, is such a common piece of exercise equipment that ...

The Swiss ball—also known as an exercise, stability, or physio ball—is one of the best tools for building core strength, thanks to its inherent wobbliness. Whether you hold it, lean against it, or ...

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 ...

When you think of strength-training equipment, you probably think of barbells, dumbbells, and kettlebells. But you can also develop serious strength with the help of some friendly medicine balls and ...

Question: I’d like to purchase a stability ball, but I’m confused about the different sizes. Could you offer advice on which one I should use? Answer: It largely depends on your size and your reason ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. It’s time for a little ...

Instructor: Heidi Lynch, who has been teaching this class for the city of Boulder for 20 years. Lynch began teaching after she retired as a physical therapist from a chronic pain clinic, where Swiss ...

When it comes to building abdominal strength, focusing on exercises that stabilize the core and work all of your ab muscles is key. Yes, your six-pack (rectus abdominis) is important, but so are your ...