Physique typology is a classification system that categorizes human bodies into different types based on physical characteristics. The most common framework includes three main types: ectomorph, mesomorph, and endomorph. Ectomorphs are typically slender and lean, mesomorphs are muscular and well-proportioned, while endomorphs tend to have a rounder physique with more body fat. This classification helps in understanding how individuals may respond to diet and exercise. For example, ectomorphs might find it challenging to gain weight, while mesomorphs often build muscle easily. Recognizing these types can assist in tailoring fitness and nutrition plans for better results.