Caffeine for sports

The author of this NYT article is in love with caffeine. I'm reading it thinking-- yeah, but what about the health detriments... are there any? The article eventually gets to health by explaining that even though caffeine can increase your hr + bp and make you urinate more often at first, with regular use over a couple days these effects are habituated. It's hard to think anything can have so many benefits (not forgetting the holy antioxidants) without being bad. I often worry coffee will be our generation's cigarettes. But no evidence for that at all.