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. High intensity ...

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High-intensity interval training is a workout technique that gets you a lot of bang for your buck. This type of workout serves as cardio and strength training, burning calories, boosting your ...

The American Heart Association recommends that adults get "at least 150 minutes per week of moderate-intensity aerobic activity or 75 minutes per week of vigorous aerobic activity" — or a combination ...

If you're looking to step up your shape-up game, this 30-minute cardio interval plan she shared with us is a great way to boost the fat burn and tone the lower body. The workout is simple — after a ...

Interval training is great for boosting cardiovascular endurance and promoting overall fitness. Our fitness expert, Judd NeSmith, NASM-CPT, PES and founder of Serious Fitness, explains interval ...

When it comes to carving out time to work out, many people believe an hour is necessary to really feel the muscle-quaking benefits of a good sweat sesh. That, my friends, is a piece of fitness fiction ...

Running and joint pain can go hand-in-hand, considering just how high-impact the sport is. Especially for road runners, as the significant force of the pavement can put stress on muscles, overworking ...

Exercise should be part of everyone's lifestyle to prevent disease, improve sleep, strengthen muscles and bones, improve brain health, and boost mood. If your goal is to shrink your midsection, you'll ...