1. Loma Linda, California Adventist community in California outlives the average American by a decade. 2. Nicoya, Costa Rica Spends 15% of what America does on healthcare, but residents are more than twice as likely to reach a healthy age of 90 years. 3. Sardinia, Italy The world’s highest concentration of centenarian men. 4. Icaria, Greece World’s lowest rates of middle-age mortality and dementia. 5. Okinawa, Japan Home to the world’s longest-lived women.