Before Dementia: 20 questions you need to ask about understanding, preventing, preparing for and coping with dementia from the specialist doctor and author of Staying AliveAbout preventing, preparing, coping How do I know if I have dementia, and how will I live with it if I do? Can people with dementia consent to sex? Can they choose euthanasia for their future selves? And can we prevent or push back its onset? Chances are you know someone with dementia, but how well do you really understand the condition? Dementia is a complex interplay of biological, social and psychological factors, and understanding it means