My dog is the first one that I've "owned", and she's probably only got about 5 years left Could be wrong though, cuz even though her snout is greyed she still plays and pulls just as hard as when she was full grown and settled at 2 yrs.She keeps having blood in her urine, and vet said get some Amoxicilian from my dr. and giver her that. Works like a charm, but then it happens again a couple times each month. I'm just thinking "please be ok, and don't die on me anytime soon" My heart will break when that day comes p.s. - chk yer pm's