Feasibility Trial of Functional Clothing, Moderate Exercise, and Health Information for Stress Reduction and Behavior Change in Okinawa

Participants will receive an educational leaflet on lifestyle modification, which provides practical advice on diet, physical activity, and stress management. The leaflet will be distributed at baseline.

Participants will receive a functional shirt designed to support posture and physical comfort (Relive brand). They will be instructed to wear the shirt daily during the 8-week intervention period. Manufacturer: Relive Inc., Japan.

Participants will receive a structured exercise manual and will be instructed to perform moderate-intensity exercise (e.g., brisk walking, light jogging, or calisthenics) for 30 minutes, three times per week, over 8 weeks. Weekly follow-up calls or messages will be provided to encourage adherence.