Overview

• A study of nearly two million Koreans found that metabolic syndrome increases the risk of young-onset dementia by 24%, with stronger effects in women and younger participants.
• Each component of metabolic syndrome—such as high blood pressure, high blood sugar, obesity, and abnormal cholesterol—was individually linked to higher dementia risk.
• Participants with all five components of metabolic syndrome faced a 70% higher risk of developing dementia before age 65 compared to those without the condition.
• The research, published in *Neurology*, was observational and cannot establish causation, but it underscores the importance of early lifestyle and medical interventions.
• Experts recommend addressing metabolic syndrome through balanced diets, regular exercise, routine health screenings, and, when necessary, medications to reduce dementia risk.