What Does BIA Mean? A Comprehensive Guide to Bioimpedance Analysis
If you’ve ever stepped on a bioimpedance scale or seen a body impedance machine, you’ve experienced BIA — Bioelectrical Impedance Analysis. BIA is a fast, non-invasive method that measures your body composition, including body fat percentage, lean muscle mass, and total body water. It works by sending a very low electrical current through your body; since fat, muscle, and water conduct electricity differently, the device can estimate your health metrics more accurately than a regular scale. Factors like BIA height, hydration, and age help improve accuracy.