i remember my mother telling me about my maternal great grandfather, who apparently was a more than useful carpenter and metal worker though he had no formal training and was an Ag Lab. Apparently when he was in his late 70s he replaced the bottom of a saucepan for my great grandmother. Only problem the old boy had developed dementia, and though the new bottom was a perfect fit with no leakages around it (testimony to his skills) he had made it in WOOD so it was quite useless for cooking. Before anyone asks I am now 76!! so who knows, these postings my be the precursor to twilight. At least I shall never know
By the way, my great grandmother lived to be 91, and was the only one of her generation who lived in my lifetime. My Aunt, and my mother (2 of her grand daughters lived to be 98 and 99 respectively. Most of the women in the family live into their 90s, and usually without showing dementia symptoms.