I've been drinking coffee almost daily since I was 11 or 12 (and just to clear things up, coffee does NOT stunt your growth. I'm about six and a half feet tall, despite having had hundreds--or perhaps thousands--of cups of coffee in my lifetime.
Random digression: I always think that the people who drink blended drinks which contain trace amounts of coffee are amusing when they way that they drink coffee. The way I see it, coffee needs no additives--milk, cream, sugar, flavoring, and all the rest of the crap that people put in their coffee is useless, and detracts from the taste. Sure, this is just my opinion, but I've always thought that the best way to drink coffee is black.