Brännström completed his PhD at Lund University. Before and during, he worked as a clinical audiologist in Sweden. Also, he has served as the president of the Swedish Association of Audiologists for five years and is currently the vice president of the Nordic Audiological Society. His research interests include psychoacoustics, cognition and hearing (including tinnitus), hearing rehabilitation, hearing aid outcomes, tele-audiology and psychosocial work environment for audiologists.