So, make some disease up, just for him. Call it "Fred" or something :-)
My sister-in-law was saying she's has sneakily gotten my brother to agree to a "little" neuro exam because she's worried about his short term memory (he's 69 this year). She's always saying she thinks he's ADHD and I found this today that might explain some things about him (and me):
http://www.sparkpeople.com/resource/...lth_day=638133