My husband is 76 and was diagnosed with MCI a yr ago. How father and sister both had Alzheimer’s. He displays all the typical traits of mci. Forgetful, looses items, difficulty with tasks , disorientation. The only thing he never forgets is intimate relationship ( sex) every week. More often if possible. Is this normal. It is very difficult to control and is a difficult subject for me to address. I am 73