[mattmcknight]

It doesn't match the results though. The title is it doesn't work for "you". "You" may not be above 14 on the depression scale. "You" may get more than three sessions with a trainer. "You" may be in the part of the sample that did improve their mood.

It's always a stretch to over-generalize to "everyone", or the more annoying "you", from the results of a study when the effect on all people is not going to be the same.