I asked fitness expert Dr. Femi Betiku to share more about the problems with a weak core for runners. A weak core means a ...

New research reveals that Earth’s solid inner core is actually in a superionic state, where carbon atoms flow freely through a solid iron lattice. This unusual behavior makes the core soft, matching ...

Aim for a 45–90 second plank after 50. Learn how to test safely, spot form red flags, and build real core endurance.

Static holds might be stalling your progress; discover the dynamic movements that stabilize your spine, sharpen your balance, ...

Even if you're a fan of classic core exercises like planks, crunches, and sit-ups, there comes a point where you’ll need to add more complexity and variety to keep progressing. For a women’s core ...

You’ve probably heard the phrase “engage your core” at least once in your life, even if you’ve never seen an exercise program, read a fitness magazine, or set foot in a gym. Sometimes it’s gently ...

The “core” refers to the main muscles in the trunk of the body. They help protect the spine, provide stability, and increase strength. Strengthening the core muscles can improve athletic performance, ...

AB TRAINING SHOULD be more than just an afterthought for the last 10 minutes of your workout routine. The majority of your favorite strength training exercises—from deadlifts and squats to rows and ...

Discover what core earnings are, how they're calculated, their importance, and how they differ from GAAP earnings. Learn how core earnings impact investment decisions.