Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Overweight and Obesity ?
    ### Response:
    The most common way to find out whether you're overweight or obese is to figure out your body mass index (BMI). BMI is an estimate of body fat, and it's a good gauge of your risk for diseases that occur with more body fat.
                
BMI is calculated from your height and weight.
    