Conversation: The conversation between human and AI assistant.
[|Human|] HI , My dad is 74 .His behaviour has changed significantly .He used to be a very good person with sound behaviour .But now he is very very stingy .. cares for no one.. often lies and never admits that he lied . he has become cunning .His habits have changed too ..he is always sleeping .. He is very unhygenenic .. always complains that he has the biggest illness which he claims to be constipation and there is no cure for it He is very mean in his words and very calculative in words and money he hates my mom what is wrong with him ? why does he behave so cunningly .why has he become so selfish?
[|AI|]  HelloThanks for using Chat Doctor for posting your query. I have gone through your question in detail and I can understand what you are going through. There is a definite change in your fathers personality. The most common cause is onset of cognitive disorders like dementia. This leads to such personality changes. The other possibility could be a mass lesion inside the brain. Considering his age, it would be wise to get a CT scan brain done. Hope this helps, If you have any further query, I would like to help you on the link:bit.ly/ Chat Doctor.