Colleagues of Kristina Beata Valkhovd from Gothenburg University conducted a large-scale population cohort study. They concluded that individuals possessing developed abilities in inductive reasoning during early adolescence have a lower risk of developing dementia and somatic diseases later in life.
Data from 10,539 participants from a representative Swedish cohort born in 1948 were used for the study. These participants underwent cognitive tests at the age of thirteen.
Information on morbidity was obtained from national health and mortality registries, covering an observation period exceeding six decades and ending in November 2025. The link between adolescent cognitive scores and disease risk was assessed using Cox proportional hazards models. The results of this work were published in the scientific journal Alzheimer's Research & Therapy.