I have found a post about cats getting dementia. That means getting senile in case any of our human friends are reading the blog. There is a good link on this subject here:
The article says that as long as the cat has a good diet, companionship and mental stimulation he or she is less likely to develop dementia. Also if the human plays with the cat it is good for both of them.
I have to make sure that I take Lynettea out regularly for her walk and play with her at least once a day. I don't want her to be understimulated and get dementia. Otherwise where will my food come from. She may be too forgetful to put any food out or put water in my bowl. I need to look after her.
She thoughtfully warmed up a wheatbag in the microwave for me this afternoon and gave it to me for a snuggle.