Increasing levels of dementia are likely being observed because we have healthier older people than ever before. Anecdotally I’ve known 3 people with severe Al

Increasing levels of dementia are likely being observed because we have healthier older people than ever before. Anecdotally I’ve known 3 people with severe Alzheimer’s who were extraordinarily robust - healthy in every other way into their eighties. In a earlier era they likely would have been dead before their dementia became incapacitating.