Green tea compound and lifestyle changes may shield high-risk brains from dementia—long-term test underway

This study follows 121 people who carry the APOE-ε4 gene variant and have noticed subtle memory slips—a group at higher risk for Alzheimer's. They previously completed a 12-month program combining diet, exercise, cognitive training, and a green tea extract (EGCG). Now, researchers will check whether those benefits held up five years later by testing memory, brain scans, blood markers, and lifestyle habits. No new treatment is given; this is a long-term checkup to see if the earlier intervention made a lasting difference.