Obesity/Overweight
Body Mass Index (BMI) is a way to characterize your height and weight stand with regard to normal values, and can be used to determine whether you are underweight, at a healthy weight, overweight, or obese.
A BMI at or above 25 is a risk factor for obesity related conditions: arthritis, back pain, cardiovascular disease, hypertension, diabetes, and some types of cancer.
A BMI below 18 increases your risk for osteoporosis.
The BMI can be calculated via this link.