Sarah is a registered dietitian and freelance writer passionate about connecting people to information that will help them improve their mental and physical health. She’s a big believer that food is ...

If you are looking for a relatively easy leg day, with more than half of the volume made up of cardiovascular training rather than actual leg exercises, this is a good one to use as a stepladder to ...

Official recommendations vs. your goals.

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 ...

If you can find a structure for your workouts, it will make all the difference. My advice is to do a split routine that works with your abilities, goals, equipment, facilities, time per day and days ...

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 ...

If you want to boost your cardio fitness, you’ve got two ways to level up your workouts: push harder or faster, or keep at it for longer. Each option comes with its own challenges. The first can ...

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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 ...