When it comes to fitness, having a strong core is more than just about aesthetics—it’s essential for overall health, stability, and performance. Whether you’re lifting weights, running, or simply ...

In TODAY.com's Expert Tip of the Day, a trainer reveals how she can always tell when a client is neglecting their deep core and her top exercises to try.

Myth: Common Core standards will limit teachers' creativity and flexibility. These are standards, just like the ones schools have always had; they are not a curriculum.