Choose the activity you love the most, and focus less on the calories and more on how much better you feel after your workout ...

Here's how to stay in a deficit safely. If you’re trying to lose weight, it’s natural to want an efficient solution. During ...

If you have been on a weight loss journey, you know how difficult it can be. The most important factor to consider is the calorie deficit, and that's not as simple as just eating less. In fact, a ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...