I'm aware there are studies showing that those who exercise self-control are much more successful by almost every imaginable criterion.

I'm also vaguely aware that we have some ability to influence and train the brain - sometimes in ways that are useful and sometimes in ways that are deleterious.

There's nothing inherently unscientific about the subject, Rev, but whenever someone shows up with a quizzical look on his face and wad of cash, you can be sure there will be lots of entrepreneurial spirits eager to sell a remedy for his confusion. I'm interested to know if there are specific methods the authors suggest and, if so, the extent to which the efficacy of those methods is supported by controlled studies.