BMI score is failry a good parameter to check if you are underweight, normal weight, overweight or obese. Body Mass Index, or BMI, is a person’s weight in kilograms divided by the square of his/her height in meters.
Underweight makes you more prone to diseases because it signifies that your body’s immunity is weak. You can even get osteoporosis in later stages of life or be anaemic. If you are overweight, obese or severely obese, your chances of developing various diseases increase with the increase in your BMI number. You get more prone to diseases such as high blood pressure, type 2 diabetes, high cholesterol, coronary artery disease, stroke, among many others.