Valentine’s month is usually about dinners, gifts, and movie dates, but why not add fitness to the celebration this year? Exercising with your partner is not just good for your health, but also ...

From sprints to incline walking, the data shows which workouts burned the most fat – and why jogging isn’t automatically top ...

Steady-state cardio has fitness influencers in a chokehold. But now some are questioning whether it’s actually the smartest ...

Cardio is more than just running laps or hopping on a bike. It's any movement that gets your heart pumping, your body sweating and your energy levels soaring. Whether you're chasing a weight loss goal ...

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. So where should you ...