A research project invited 100 old people to a surgery for a test to see if they suffwered from Altzeimers. Those who didn't turn up were diagnosed with the debility - the only problem was no one could find them.
My husband is worried because he can't remember whether he suffers from Alzeimers or Senile Dementia.
My husband keeps forgetting that the Popsie next door is not his wife!
They say that as you get older your memory tends to go. That's not surprising - you have more to try and remember.
Dr - this is the third time you have asked me to see you about your memory loss in a week.
Patient - your memory is failing, Doctor.