Defined, toned abs — commonly called a six-pack — are an often sought-after goal in the gym. But not all toned abs look the same. Some people sport a four-pack, while others may have an eight-pack.

Add Yahoo as a preferred source to see more of our stories on Google. Experts on why it's so hard to get six-pack abs, particularly for women, and why it's not the only sign of a strong core. (Photo: ...

A combination of static and dynamic exercises, cardio, and a nutritious diet may strengthen the muscles in your core, including your abdominals. It’s no secret that getting a visible six-pack is a ...

Toned abs — but in particular the infamous six-pack — are often seen as the Holy Grail of fitness. Experts say they're not only much harder to achieve than many people realize but some caution that ...