DEAR DOCTOR K: My mother has started showing signs of dementia. Will it be all downhill from here? Or can dementia ever be treated or reversed?
DEAR READER: There are many different causes of dementia. We can't do much to slow or reverse some of them, but we can reverse and even cure others. Dementia is a catchall term. It covers a variety of illnesses that cause memory loss, confusion, changes in personality and declining ability to perform everyday activities.