Obesity is a medical condition characterized by an excessive accumulation of body fat that presents a risk to an individual's health. It is typically measured using the Body Mass Index (BMI), which is calculated by dividing a person's weight in kilograms by the square of their height in meters (kg/m²). A BMI of 30 or greater is generally considered obese, while a BMI between 25 and 29.9 is classified as overweight.
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