Coffee's positives extend life[1], therefore i disagree its "not good for you" . As well decaf coffee goes through some gnarly processes, i'd rather risk the caffeine and have unadulterated antioxidants et al.

Any sources that sugar is a drug, addictive or something like that?

Obligatory link because you said "I feel great" : https://www.youtube.com/watch?v=Y6rE0EakhG8

[1]: http://www.health.harvard.edu/press_releases/drinking-coffee... -- sorry its annoying.