Increasing awareness of the need for brain health

Neurological disorders are affecting the lives of increasing numbers of people. New data from the Global Burden of Disease, Injuries, and Risk Factors Study (GBD) indicate that, in 2021, 3·4 billion people—more than 40% of the world's population—had a condition affecting the nervous system, and that the associated health loss is increasing. The findings, together with several new initiatives, highlight the need for greater recognition of the burden of neurological disorders, and for urgent action.