Did You Know That Cardio Uses 3 Different Energy Systems? Here’s How To Shape Your Workout To Maximize the Benefits of Each

Understanding the three cardiovascular energy systems, and how to leverage them when working out, will help maximize your cardio days.

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Photo: Getty Images / Skynesher

If Your Fitness-Focused New Year’s Resolution Isn’t Working, Try These 5 Expert-Backed Tactics

New Year's resolution not working out for you? Don't stress. Try these five New Year's resolution alternatives backed by experts.

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Photo: Stocksy/ZQZ Studio

4 Beginner Treadmill Workouts for When It’s Too Cold to Get Your Steps Outside

Can't get your steps in outside? Don't worry: Try one of these expert-backed beginner treadmill workouts instead.

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Photo: Stocksy/Bo Bo