I read this article in the BMJ this week by Jarvinen and colleagues, that made me reconsider the whole concept of measuring bone density and trying to improve it with medication. This video summarises it. Already there have been critical responses to Jarvinens article from, amongst others, the National Osteoporosis Society. Personally (this is Andrew writing), I thought it was a well written and reflective article, quite reasonably calling into question an established protocol.