The rate of change in hypomanic traits longitudinally predicts the development of problematic smartphone use. Zeng Y, Li Z, Li W, Kan Q, Xie Y, Zhao X, Li J, Zhang M, Yang L, Abudukadier A, et al. Prog Neuropsychopharmacol Biol Psychiatry. 2026 Oct 02:111956. PMID: 42826877. Abstract CommentRecommendBookmarkWatch