“Sit-ups primarily train your rectus abdominis or your ‘six-pack’ muscle, along with hip flexors and some deep core ...

When most people think of a strong core or achieving abs, the first exercise that comes to mind is often sit-ups. While sit-ups have long been a go-to for strengthening the core, they're not always ...

Doing 100 sit-ups every day sounds simple — but the results go deeper than sore abs. This video breaks down how daily sit-ups affect core strength, posture, muscle endurance, and recovery, while also ...

The classic sit-up is a workout staple. Whether you've become all too familiar with the movement in your weekend HIIT class or eked out those last few reps while following a home workout video, you've ...

Exercising regularly is extremely important as it helps to keep you healthy and also prevent diseases. Every individual should take part in some form of physical activity. According to the World ...

Dr. Shields is a physical therapist with a background in English Literature and a passion for healthcare and education. She hopes to combine her clinical expertise with her love of writing, establish ...

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. It’s kind of strange, ...