3 things I learned about longevity while visiting the Nicoya Peninsula of Costa Rica, one of the world's Blue Zones

While traveling in the Blue Zone of the Nicoya Peninsula in Costa Rica, I saw the local's holistic approach to diet, exercise, work, and social life was the key to the region's longevity.

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• I visited the Blue Zone of Costa Rica's Nicoya Peninsula to learn about longevity.
• Residents of Blue Zones live long, healthy lives — and you can see why when observing local habits. 
• I saw that while the keys to healthier living are simple...