As mentioned, applied neuroscience provides the basis for preventative health. Preventative brain health for mood and cognition relies on a multifaceted approach focusing on several key lifestyle factors. The most impactful strategies, supported by major health organizations, include physical activity, a healthy diet, sufficient sleep, mental stimulation, social engagement, and managing chronic health conditions. Such strategies may be used effectively as a preventative plan for both cognitive declines, as in dementia, and for mental health factors such as functional cognitive disorder (FCD).