Excuse me – but I refuse to go to a practitioner to “change my brain.” There are so many things I can do to change my own brain. Sunlight. Diet, exercise. Daily walks, seeing the horizon, listening to music, meditation, qigong, yoga – all of these I am in complete control of. When I get in your chair (I assume you, @class1quirk, are also a practitioner, like jjnoles) – that choice is taken away from me, and I am at the mercy of the practitioner. No, thank you. And thank you James Hall for pointing out these risks.