You make a statement, it gets responded to, you respond back -- Poof! You're involved!
If personality is not fixed, why would it be unhealthy to want to change it? Isn't that what personal development is all about? You use what works, and you transform what doesn't work so well into something that works better. I believe that is the heart and soul of health.
I think lightthecandle is looking for ways to do that, right lightthecandle?
I agree, frogcat, that vigorous exercise is a great approach to transforming just about anything. That and water.
Especially if you combine the exercise and water with other people.