The difference between the situations of Greinke and Hamilton is that Greinke
didn't choose for this to happen. If you haven't dealt with a lot of depression or anxiety in your life, you're a special and lucky person I guess. And how do a lot of people choose to deal with depression and anxiety? Plenty of alcohol consumption and/or drug use. It's likely this was how Hamilton chose to handle such situations in the past, and heck, I've certainly been known to drink away my sorrows on occasion.
