Just finished watching this

http://www.bbc.co.uk/iplayer/episode/b01jhwtv/How_to_Beat_Pain/

Felt it could have taken longer 30 mins to cover the 3 subjects and not been dealt with in such a half hearted humerous way by the 2 Drs who obviously had no health problems of their own.

I wondered how many folk took part to get 3 that it worked on?