BMI, or Body Mass Index, is a widely used metric in health assessments that relates weight to height. It helps categorize individuals into ranges such as underweight, normal weight, overweight, or obese, providing a general assessment of body fat. While BMI can indicate potential health risks associated with obesity, it does not measure body composition directly and may not be entirely accurate for athletes or muscular individuals. Nonetheless, BMI remains an important screening tool for identifying those who may benefit from further health evaluations or intervention strategies to improve overall wellness.