six years ago my parents were a young looking young acting 68 year old couple my dad has asthma and was allergic to cats so my mother could never have one then my dad started taking advair his asthma symptoms disappeared and cats didn't bother him anymore. so they started adopting abandoned cats they come and go as they please I mean a lot of cats about a year later both my parents have bad memory loss they are both sick the doctors say its alzhimers I think its the cats but no one will listen to me is it possible the cats are causing there sudden rapid deterioration