1Rebel master trainer LJ shares a short core workout to build strength — so we tried it.

Ab exercises after 60 from a certified strength coach, plus why nutrition and daily movement matter too.

Standing exercises for abdominal fat after 65, from a trainer who explains why sit-ups miss the deep core and what to do ...

Add Yahoo as a preferred source to see more of our stories on Google. Want a six-pack? Here's how to get abs. While many people may want to increase their muscle mass primarily to improve physical ...

Simple chair exercises can build core strength, improving your balance, posture, and stability. These exercises also reduce ...

Ab exercises tend to conjure up images of endless sit-ups, leg lifts on a mat and planks. While these movements have their place, standing ab exercises work your core muscles more closely to how they ...

Think you need hours of crunches for a flat stomach? You’re doing it wrong. I’m breaking down the 10-minute Pilates-based core workout that targets your deep abdominal muscles more effectively than ...

As a military fitness trainer and inventor of the Strength Stack 52 fitness workout cards, you might think I am a big advocate of sit-ups. Actually, I despise sit-ups and rarely ever do them, but many ...

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. Do you want a strong ...

Sure, planks and crunches can help you strengthen your core. But are there machines for getting stronger abs at the gym? Integrating gym machine abs workouts into your routine helps you strengthen ...