The population of the Nicoya Peninsula in the North-Western region of Costa Rica presents a higher longevity with an overall mortality rate 20 % lower. Scientific investigations showed that the average height of the inhabitants of Nicoya is greater than that of the general population of Costa Rica whereas their body mass index is lower, as is the prevalence of physical and mental disability The traditional diet is based on traditional foods including rice, beans, fish, beef, pork, and chicken.. Some environmental factors may also be relevant and the drinking water in the region has a high calcium content that might have exerted a protective effect against cardiovascular disease and age-related osteoporosis. Furthermore, the elderly population residing in the peninsula experiences a particularly low level of stress confirmed by certain social indicators like the rate of suicide in Nicoya. Finally, it should be noted that current longevity in Nicoya is also related to improved socioeconomic conditions, an efficient social security system, and free healthcare guaranteed by the government
Longevity Blue Zones 