Why are my nails and hair growing so quickly?

As of late, my nails (both toe and finger) plus my hair seem to be growing faster than ever before. Im having to have hair cuts every one and a half weeks just to stay smart, plus my finger nails seem to need trimming after only three days. Any uber medical boffins out there know of an explanation?
Update: Im not drinking at all at the moment so cant be that! And by smart i mean as in parade smart, not intelligence!
Update 2: Oh, and im 25, nearly 26 :( so hopefully it's nothing to do with puberty!
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