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 easy to almost ...

Which back machines are best? There are many exercise machines designed to work the neck, arms and upper back, but there is one piece of equipment that focuses on your lower core muscles — a back ...

For mobility workouts from Danielle Gray — plus fitness challenges, walking podcasts, meal plans and inspiration — download the Start TODAY app! If you suffer from pesky aches and pains, there's a ...

When first getting started, the gym can be a daunting place, as there is so much equipment to choose from. Which is the best option for your goals? As a personal trainer, I have worked with many ...

Experts share the best routine to strengthen—and enhance—your butt, including a twist on a classic that one trainer calls “the ultimate glute exercise.” ...

The condition is hard to treat. But moving can help, if you do it right. Ask Well The condition is hard to treat. But moving can help, if you do it right. Credit...Joyce Lee for The New York Times ...

Exercises to rebuild muscle after 55: a certified trainer shares 5 daily dumbbell moves to train full-body strength.

A broad, well-defined back is a cornerstone of any well-rounded physique. But that’s not the only reason to pump up your posterior—it’s also a critical way of improving posture, reducing back pain, ...

Ever wondered about that massive machine with a sliding barbell at the gym? Allow us to introduce you to the Smith machine. Despite being a staple in most gyms, this behemoth can be ...

By the time you reach the age of 60, you will have lost 25% of your muscle mass (a common part of aging). But that doesn’t mean you have to resign yourself to being “weak.” Fortunately, you can ...