I have a very close friend whose father has alzheimers. She just turned 50 and is very irritable, accusatory and hostile alot of the time. She makes scens in public at the slightest thing.
I am concerned that with the genetic link she maybe showing signs.
The youngest I've heard of, and this is verifiable, was 29. Do other members in her family have AD? The other consideration is that she's going thru menopause, it can do strange things. Hope you can get her to a doc. The sooner the better.
I, too, have heard a Dr say the youngest on record was 29. Is your friend showing any signs other than irritability and hostility? What about her memory? Does she seem to forget things you just told her? Is she having any problems at work?