How to Access if You Are Underweight or Overweight?? Dr.Lalit Pandey General Practitioner View Full profile 27 September, 2021 Maintaining the right body weight plays a major role in staying healthy and avoiding various health risks. Being underweight or overweight increases your risk of certain weight-related diseases. Your body mass index (BMI) is considered a major screening tool to estimate your weight status. What is BMI? BMI is a measurement of a person's leanness or corpulence based on their height and weight and is intended to quantify tissue mass. It is widely used as a general indicator of whether a person has a healthy body weight for their height. Specifically, the value obtained from the calculation of BMI is used to categorize whether a person is underweight, normal weight, overweight, or obese depending on what range the value falls between. These ranges of BMI vary based on factors such as region and age and are sometimes further divided into subcategories su