Coach Daniel Herman knows a thing or two about training strong core muscles, and he’s got something better for you than sit-ups, crunches or Russian twists. You might already know it, but he’s got a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." After a year of reestablishing a workout habit and focusing on strength gains, I was eager to see more ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." After a year of reestablishing a workout habit and focusing on strength gains, I was eager to see more ...

After a year of reestablishing a workout habit and focusing on strength gains, I was eager to see more results. That meant visible abs for a milestone anniversary vacation. My virtual trainer on the ...

While sculpted abdominal muscles are often featured in advertisements, social media posts and magazine articles, there is more to strong abs than good looks. Strong abdominal muscles are key to ...

Hitting that end-of-January motivation slump—or just want to spice up your routine with fresh moves? Meet the quick-yet-intense dumbbell workout that will jolt you and your body back to life. This ...

YOUR CORE TRAINING routine needs to evolve beyond bodyweight. Whether your goal is to train for aesthetics or performance (hopefully, you'll be concerned about both), you'll only get so far by running ...

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 ...

If you want to work your abs, you’ll probably default to sit-ups, planks or crunches. They sure are effective, but celebrity trainer Ben Bruno, who’s worked with the likes of Justin Timberlake and ...

Core exercises can improve strength, posture, and overall health. Although it can be harder for females to attain visible ab muscles, performing core exercises regularly is very beneficial. Sex and ...