Global evidence generation
Disparities in the distribution of neurological and mental health disorders (NMHD) in different regions of the world can provide clues on the putative risk factors while providing basis for intervention strategies. This chapter utilizes the Global Burden of Diseases (GBD) data and the disability adjusted life years (DALY) calculations in the different World Health Organization (WHO) regions to adduce reasons for the peculiarities observed. The focus is on the most common NMHD, particularly those for which preventive strategies are likely to result in improved health outcomes for the majority of those affected. In this regard, stroke, epilepsy, and depressive disorders have been given special attention because of their high societal impact and the extensive studies from different regions. Dementia deserves special mention in view of its looming epidemic in low and middle income countries (LMICs), while its burden is lessening in high income countries (HICs) due to appropriate interventions and higher education.