I used to date a girl who was a psychology major. She was studying behavioral psychology so ever since those days, I've respected and appreciated the people who dedicate their careers to understanding the brain.

I've figured out the water example on my own after getting a water bottle for work. It started out more as a "I don't want people to judge me for being a soda fiend, so I should 'fall in line'" kind of deal, but now I really don't crave soda at work. Unfortunately at home it's like a switch gets flipped to "drink sugar now", but I'm working on it. At least I'm getting lots of water at work. I'm gonna look into the links you provided and see if it helps. Thank you!