Hypothesis and TheoryPublished 28 September 2026The brain fatigue syndrome: a cross-diagnostic phenomenonLars Rönnbäck · Paulin Andréll · Helena Filipsson Nyström · Kristina Glise · Anna Grimby-Ekman · Birgitta JohanssonFrontiers in Human Neurosciencedoi 10.3389/fnhum.2026.1855514