The number on the scale doesn’t reveal everything about your health. In an era dominated by smartwatches and fitness apps, tracking health has never been easier—or more confusing. The sheer volume of ...

The scale has never been a friend to Mana Mostatabi. Even back in high school, when she ran a quick 100m on the varsity track team, her BMI – a ratio of weight to height – put her in the overweight ...

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 ...