One of the most confusing things when first learning about physical fitness can be all of the equations, formulas and indexes that are commonly used. Some of these are of great use while others hang on only to remind us of the true lack of evidence based health education on a global level. In this, the first of what will be a series of articles covering the common methods of data gathering for health and fitness I will cover the most used and often misunderstood metric: Body Mass Index (BMI).

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