The waist-to-hip ratio (WHR) is a measurement used to assess body fat distribution. It is calculated by dividing the circumference of the waist by the circumference of the hips. A higher ratio may indicate a higher risk of health issues, such as heart disease and diabetes, as it suggests more fat is stored around the abdomen. This ratio is often used in health assessments because it provides insight into body shape and fat distribution, which can be more important than overall weight. Health professionals may use the WHR alongside other measurements, like body mass index (BMI), to evaluate an individual's health risks.