My friend s husband is exhibiting signs of dementia - forgetfulness, loosing documents etc regularly, verbal aggression towards his wife, shouting, refusing to keep an appointment with the memory clinic, driving errors. He really is not able to accept there is any problem and my friend has asked me, as an outsider although I know her husband well - to talk to him. How best can I help him.
Hi, Welcome to Chat Doctor forum.  As you describe, it appears to be the psyzophrenia, the main feature is to avoid the doctors and denying that he has something.  When he refuses psychiatrist treatment, You can consult a physician for some other reason, and get him treated. Once he is in track, he can accept the treatment.  If your friend tells also he may not accept.  Give him more of green leafy vegetables, pulses,sprouts, and protein rich foods to have good health and resistance.  Wishing for a quick and complete recovery. Thank you.