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 ...

Smart scales track changes in your muscle mass, body fat percentage and other health metrics — but how do smart scales work, and how accurate are they? When you purchase through links on our site, we ...

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 body mass index, or BMI, predates the bathroom scale by more than half a century. But it has not changed with the times. The BMI was created in the 1830s before calculators and computers existed.

This article was reviewed by Felix Gussone, MD. Key Takeaways: Body composition offers a clearer picture of health than ...

The American Medical Association released a new policy on how doctors should use body mass index (BMI), acknowledging the metric's inherent flaws. When you purchase through links on our site, we may ...

Overcoming an all-or-nothing mindset promotes long-term weight loss. You can measure your BMI with a scale, but it's not accurate as an indicator of health. We break down the history behind BMI and ...

Using Newton's laws of motion and devices made from springs, astronauts on the International Space Station can measure their body mass. When you purchase through links on our site, we may earn an ...

The term BMI is all over health care. The abbreviation stands for body mass index, a simple number that has evolved into a ubiquitous medical tool for obesity screening. For example, a BMI from 18.5 ...

A more sophisticated measurement, called bioelectric impedance analysis, uses a special scale that measures resistance to the flow of an electric current to estimate fat-free body mass and body fat ...