Official recommendations vs. your goals.

Gains ahead.

Strengthening muscles and raising your heart rate, this Ben Bruno-approved workout could save you time in the gym ...

High-intensity interval training is one of the best ways to pack a lot of exercise into a short period of time. HIIT workouts are so efficient because they alternate short bursts of very intense ...

Whether you go to a gym or open an app at home, it’s surprisingly difficult to come up with a week’s worth of workouts. It’s why you feel like you’re stuck in a rut or always bored two minutes into ...

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 ...

Steady-state cardio may be more helpful for beginners looking to manage their weight, while HIIT is a great way to boost aerobic fitness quickly.

Here’s how to get the most out of your workouts.

Running while overweight is hard and can take a toll on a person’s feet, knees, shins, lower back and hips. Here is this week’s question: Stew, what is your advice for heavier athletes running for ...