Thanks to the ever-improving world of fitness trackers and apps, you've never had more access to personal health data. But which of the dizzying number of markers and metrics should you really be ...

The military’s new height to waist standards aim to better measure health and readiness, but raise concerns about fairness, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Ever wondered how body fat is calculated? There are lots of ways to do it, including smart scales ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. We’ll start at the very beginning: Body mass index (BMI) is a measure of someone’s weight compared to their height whereas body fat ...

For bodybuilders and fitness enthusiasts, changing body composition often reflects hard work and discipline—but knowing body composition is useful for anyone, and for more than just bragging rights.

Your ideal body fat percentage can depend on your age, sex, and activity level. Tracking movement and calories can help determine your body’s healthiest weight. No number is a complete picture of your ...

One of the most common measures we all strive to maximize at some point or another is our power-to-weight ratio (PWR). Your PWR is the amount of power that can be produced in relation to your body ...

The Lilliputian tailors measure Gulliver for a new suit of clothing, from Part I of Jonathan Swift's "Gulliver's Travels." (1726) Illustration (1909) by Arthur Rackham (1867-1939) Source: Alamy stock ...