Brain health for all on World Brain Day 2022.

Competing Interests: The authors comprise the full World Federation of Neurology leadership team, trustees and regional leaders. DD reports receiving consulting fees from Amgen, Atria Health, Cerecin, Cooltech, Ctrl M, Allergan, Biohaven, GSK, Lundbeck, Eli Lilly, Novartis, Impel, Satsuma, Theranica, WL Gore, Nocira, Perfood, Praxis, AYYA Biosciences, and Revance; honoraria from Vector psychometric Group, Clinical Care Solutions, CME Outfitters, Curry Rockefeller Group, DeepBench, Global Access Meetings, KLJ Associates, Academy for Continued Healthcare Learning, Majallin, Medlogix Communications, MJH Lifesciences, Miller Medical Communications, WebMD Health/Medscape, Wolters Kluwer, Oxford University Press, and Cambridge University Press; research support from US Department of Defense, National Institutes of Health, Henry Jackson Foundation, Sperling Foundation, American Migraine Foundation, Patient Centered Outcomes Research Institute (PCORI); having stock options in Aural analytics, ExSano, Palion, Healint, Theranica, Second Opinion/Mobile Health, Epien, Nocira, King-Devick Technologies, Precon Health, AYYA Biosciences, and Atria Health; owning shares in Matterhorn and Ontologic; being on the board of directors for Epien, Matterhorn, Ontologics, King-Devick Technologies, and Precon Health; and having a non-royalty bearing patent (17189376.1-1466:vTitle: Botulinum Toxin Dosage Regimen for Chronic Migraine Prophylaxis). SLL reports being acting secretary for the World Federation of Neurology (unpaid). RG reports a grant from Roche and receiving personal fees for participation on data safety monitoring board or advisrory board from Biogen, Hikma, Merck, Roche, and Sanofi. All other authors declare no competing interests.