Calculating whether someone is over-weight or under-weight is not an exact science, although there are scientific methods that can be applied to the question. The most common is the Body Mass Index and using this based on the statistics given, a girl who is 15 in October, 5ft 6ins and 46 kg is a healthy weight. A boy with the same statistics is slightly underweight.
- What is the Body Mass Index?
- What does it tell you when you enter your information?
- Do the figures given above indicate that I have a problem?
- What should I do if I continue to worry about my weight?