"Blue Zones" are regions around the world where people tend to live significantly longer, often reaching age 100 or more. These areas include places like Okinawa in Japan, Sardinia in Italy, Nicoya in Costa Rica, Ikaria in Greece, and Loma Linda in California. Researchers have studied these locations to understand the lifestyle factors that contribute to longevity. Key characteristics of Blue Zones include a plant-based diet, regular physical activity, strong social connections, and a sense of purpose. The inhabitants often engage in community activities and maintain healthy habits, which collectively promote a longer, healthier life.