Staying on top of the health and lifestyle factors associated with dementia is becoming a Sisyphean battle. In recent years, advances in research have allowed scientists to identify many different aspects of our lives associated with dementia risk in later life. Some of those are relatively easy to modify, such as brain training , diet , and exercise . Others are a lot harder to control – and a lot harder to link to a simple behavioral change. Chronic stress , aging , cardiovascular disease ,