They represented mainstream medicine - the respectable side of lifespan management, as it was sometimes called.

Health practitioners on the fringe of mainstream medicine also profit from this trend.

But there are good reasons why we don't use arcane methods in mainstream medicine.

For it to work, we may have to conveniently forget that much of mainstream medicine, in effect, involves faith-healing.

There are signs that mainstream medicine has already started to sit up and take notice of meditation.