If you want a well-rounded, upper-body workout program that blends strength training, conditioning and cardio training, try the Push-Pull and Core/Cardio Workout. This workout can be done with or ...

I discovered spin classes a decade ago, and subsequently got certified to teach them myself. In the years since, I haven't focused on other kinds of cardio group classes—but for a time, I was obsessed ...

You don’t have to strain your knees by running miles to get your cardio in. In fact, if you’re looking to ease into fitness ...

If you need to play catch-up after missing a workout because of a busy schedule, travel or taking a day off, consider the full-body combination below. This workout mixes calisthenics and a short ...

Channel your inner athlete with this sports-inspired cardio workout from The Curvy Girl Trainer Lacee Green ...

All you need is 10 minutes to fire up your heart rate and get the good energy flowing. Presented by Allegra, this low-impact cardio workout uses standing bodyweight exercises to engage the upper body, ...

Hedy Phillips is a freelance lifestyle writer based in New York. While she's not writing on topics like living on a budget and tips for city dwelling, she can usually be found at a concert or ...

When you enter the gym, which way should you head first? Toward the treadmills and spin studio to get your sweat on with a cardio session? Or toward the free weights and strength-training machines to ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...