I'm not sure that "passion" is usually a healthy thing at all. It's good to like things (playing the piano, going out with friends, writing novels, coding, etc.), and it's good to arrange your life in a way that you have the resources to do what you like.
But when I hear the word "passion" I think of CEO's who neglect their wives and families because they're passionate about their company, or of 35-year-old painters who realize they need to forgo ever having a family they can support because of their passion for painting, or musicians who write things only they themselves like, because of their passion for being authentic and non-commercial. Basically "passion" seems like unhealthy navel-gazing which is the antithesis of a healthy balance of things in your life.
And I think I'm at least somewhat justified in saying this, because passion comes from romantic passion, which is by definition a short period of time when you are infatuated by somebody else, usually to the detriment of other things in your life (friends, hobbies, etc.). There's a reason it's called "love sickness".
So maybe it's a semantic thing, that people now say "passion" when they actually just mean "things they like" -- but which cheapens the real meaning of "passion", because then how do you express that? And if people seriously encourage people to be truly passionate about things, I think that can be very unhealthy, and lead to a great deal of unhappiness.