Adults aged 50 and older, patients with type 2 diabetes mellitus without age limitationUndergoing at least one counseling by a pharmacistNo previous diagnosis of CI/dementia as determined by ICD-10 codes or the presence of a prescription for anti-dementia medications (cholinesterase inhibitors or memantine)Ability to consent to participate in the studyAbility to communicate in Slovak. The gene discussed is BCHE; the disease is diabetes mellitus.