Brain health may be variably defined in broad or narrow terms.
Central to the definition of brain health is preservation of optimal brain structure and function.
Brain health may be influenced by 5 key determinants: physical health, the environment, physical safety and financial security, opportunities for social convergence, and access to health and social services.
Cognitive medicine may be defined as a discipline and research-focused area dealing with the study, identification, prevention, and treatment of cognitive impairment and decline.
The call to optimize brain health is now a local, regional and global priority. Organizations such as the World Health Organization, Centers for Disease Control and Prevention and Alzheimer's Association, American Academy of Neurology, World Federation of Neurology, and others have developed recommendations for the maintenance of brain health. Brain health definitions range from broad to narrow in scope and may focus on cognition or encompass broader core components such as cerebral, mental and social domains. In this manuscript we will explore various definitions of brain health and its core components, the importance of cognitive and functional domains, and briefly introduce the concept of cognitive medicine in the context of brain health.