Body type refers to the classification of human physiques based on their shape and composition. Common categories include ectomorph, mesomorph, and endomorph. Ectomorphs are typically slender and have a fast metabolism, while mesomorphs are muscular and athletic. Endomorphs tend to have a rounder physique and may store more body fat. Understanding body types can help individuals tailor their fitness and nutrition plans. For example, someone with an ectomorph body type might focus on strength training to build muscle, while an endomorph may prioritize cardio to manage weight. Each body type has unique characteristics that influence health and fitness goals.