Genetics

This blog post examines a 2024 UK Biobank study showing that genetic susceptibility, sex, smoking, infectious mononucleosis, body mass index predisposition, and season of birth may influence not only the risk of multiple sclerosis, but also the timing of diagnosis. By using a time-to-event analytical framework, the study reveals that genetic risk and female sex exert stronger effects at younger ages, highlighting the importance of life-course epidemiology in understanding multiple sclerosis development.