When browsing the net about meditation I came across an article at BBC: Scientists probe meditation secrets. The article says that scientists are beginning to uncover evidence that meditation has a tangible effect on the brain.
Research into the health claims made for meditation has limitations and few conclusions can be reached, partly because meditation is rarely isolated – it is often practised alongside other lifestyle changes such as diet, or exercise, or as part of group therapy.
The BBC article is interesting, it says that:
It is a new area of research, but indications are intriguing and suggest that meditation may have a measurable impact on the brain.
This was originally posted at another (now extinct) blog of mine.