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 ...

There are various types of body composition tests (more on these below). Still, each one measures the percentages of fat and fat-free mass (muscle and bone) in the body. Knowing these percentages can ...

Many of us hyperfixate on the number on the scale as the ultimate predictor of health status. However, a lesser-discussed measurement may actually predict health and longevity more ...