Let’s be honest: When the weather outside is frightful, you just want to be inside. The colder and darker the days get, the less and less you feel like hitting the gym, which is totally merited.

With life’s constant demands, it can be difficult to maintain a healthy and active lifestyle. And it turns out that for people living in certain cities, this is even tougher. WalletHub compared the 100 most populated cities in the U.S. to see which were the best and worst places to live in terms of fitness.

High-intensity interval training with sprints, plyometrics and agility drills is the best way to increase your hockey stamina.

Shopping for a big gift for the gym rat, cyclist, runner or yogi in your life is a sweat-free snap. A new mat, a heavier kettlebell, shiny sandbag, new helmet or cool fuel belt can fit perfectly under the tree. But what about the gifts that hang from the mantle in a sock?

You might think of the push-up as an arm exercise, but this do-it-all move also works your shoulders, back, chest and abs. So if you hate push-ups (or if you’re just sick of them), it’s important to swap out the right exercises to reap similar benefits.

Most weight lifting exercises can be considered either a strength or endurance exercise, depending on the number of sets and reps you do.

Ramp up workout intensity by doing interval training on a stationary bike. Alternate between sprinting and recovering for a hard but effective session.

A broken ankle takes months to heal. Use an upper-body ergometer to keep up your fitness during this time.

Cardio exercise is essential to any well-rounded fitness program, but strength and flexibility training make a big difference, too.

In the history of fitness trends, there are few that have the popularity of Zumba, a dance-based workout. But, what if painful knees keep you sidelined?

Increase your stamina in the pool or open water by swimming regularly and working on breathing techniques.

Early birds swear that the morning is the best time for cardio; some people would rather sleep in. Who is right?