Produced by the National Osteoporosis Society, February 2004

(The NOS website hosts the original version of this document, in Microsoft Word format. It is reproduced here with permission.)

What is osteoporosis?

During childhood and adolescence, bones grow in size and density. Bone needs to be stimulated to grow and become strong and also requires a good supply of calcium. Both diet and exercise help to do this. A well balanced, calcium rich diet and regular exercise such as running, skipping, brisk walking, aerobics and weight training all help to strengthen bones. At puberty, the bone density receives a boost as the effects of oestrogen and testosterone increase bone mass.

Information about osteoporosis, how to avoid it, and how to treat it.