What Is BMI in Fitness? Formula, Categories, and Limits
BMI, or body mass index, is a screening number that compares your weight to your height to estimate weight status. It offers a quick fitness starting point but cannot measure muscle, fat, or streng...
What Is Body Composition in Fitness? A Complete Guide
Body composition is the proportion of your body made up of fat versus fat-free mass like muscle, bone, and water. It matters more than scale weight or BMI, and understanding how it is measured help...