But by doing yoga and other psychological therapy, your neurochemistry may be changed. That is how cognitive behavioural and mindfulness therapies work. I think in the end, your neurochemistry needs to be changed in order for the therapy to have an effect. But using drugs are not the only way to change your neurochemistry. In short, I don't think he is suggesting that the author of the article to use willpower. He simply suggests that maybe he can try some psychotherapy.
As I said, it's good advice. But the waters here are much more murky than that. That approach alone won't work for everyone, that's the only point I wanted to make.
You might be right, but it's possible considering all of the modern distractions and passive entertainment we have that it really is a matter of mental conditioning (or something like that).