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 ...

Army Reserve Spc. Julian Ditona, assigned to the 98th Expeditionary Signal Battalion, 335th Signal Command (Theater), sprints to the finish line of a 2-mile run during the Army Physical Fitness Test ...

HIIT is not the only or the best way to improve your cardio endurance and heart health. Steady, repeatable exercises can improve heart health and lung capacity. Many low-impact endurance workouts are ...

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 in a way that puts less pressure on your joints, then low-impact cardio ...

What if you could make a cardio workout more challenging without spending hours running at the same pace? A simple interval method that alternates between short bursts of faster movement and longer ...

When you hear the word “exercise,” what’s the first thing that comes to mind? Does it make you feel anxious, defeated, or overwhelmed? Or does it spark a sense of dread, as though you’re already ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." IF YOU’RE LOOKING for a style of workout that will push you to your limits without needing to exercise for ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It can be a challenge to figure out where to start when you want to lose weight. But if you’ve recently ...

You're currently following this author! Click to unsubscribe from email alerts. Three hours a week might be all you need to boost your longevity — if you pick the right workouts. Dr. Kevin Sprouse, ...

Is it best practice to do cardio after a workout? Let's take a look at the proper time to do cardio and make serious progress ...