I used to think weight training was just about building muscle and getting stronger. Boy, was I wrong. After diving deep into the research and tracking my own body’s responses, I discovered that how ...

As a personal trainer, I frequently am asked by my clients about the exercises that burn the most calories. I usually respond by explaining that other indicators — like strength, endurance and heart ...

Plus, exactly how to get results from whatever activity you love to do.

Cardio exercises like running or rowing are great at burning hundreds of calories. But some are better than others, especially if all you have is 30 minutes to work out. High-intensity exercises like ...

Let's set aside the myths and focus on practical advice to help you reach your goals. We all want to be efficient with our time and effort, and it's natural to look for the "magic formula" that lets ...

Exercising and eating a balanced diet are great ways to help you stay healthy. But if you are looking to burn extra calories, some exercises shed more than others. Duration, intensity and your weight ...

Physical fitness does not need to be an exact science. But you could be working out smarter—not necessarily harder—to maximize benefits. So what is the minimal amount of calories you need to burn ...

Intermittent fasting and calorie deficits can both be used for weight management and fat loss—in most cases, the most effective eating plan is one you're able to adhere to long term.

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. Here are all the ways ...