THE UPDSIDE OF ALZHEIMER’S: She was 82. He was 95. They had dementia. They fell in love. And then they started having sex. On the other hand, if it weren’t for the dementia he might have told his son to butt out, which would have been appropriate, I think. What was he worried about, an unplanned pregnancy? Nope: “Dorothy’s son-in-law, who is a doctor, suspects Bob’s son of fearing for his inheritance.”