How Getting and Staying Fit Changes in Your 20s, 30s, and 40s

Your body—and fitness—changes a lot sooner than you thought. Read on to learn when you burn the most calories, if your muscle is already waning, and how you can become fitter, stronger, and faster with every decade.

How to Lose Weight While Eating More Food.

Inside your body, a war is waging between the cells that make up muscle and those that make up fat. How can you be sure muscle wins the battle?

Different Levels of Body Fat in Men & Women

Body fat percentage is a great way to determine health and track weight loss. Average body fat percentages vary between men and women, as well as between different age groups. Below you’ll find a table with the different ranges of body fat for men and women, and illustrations of what these body fat percentages look like.

7 Tricks to Sleep Better

Of all the things you have power over in your life, sleep isn't one of them. No amount of wishing, hoping or willing can make it happen. As soon as you accept that it's out of your control, you'll spend less time worrying about it. It's like traffic during your morning commute, you can either let it drive you nuts daily or know that it's just a part of life—some days will be smoother than others.