Russia. The Caucasus. One of the largest mountain systems in the world. These snowy ranges contain the highest point of Russia and Europe, Mount Elbrus. The fivethousander is the most famous symbol of the small northern republic of KabardinoBalkaria. Since 2012, its capital, Nalchik, has been working on solving the mystery of the famous Caucasian longevity.

As life expectancy continues to soar, more and more of us are living to well over the age of 100. We ask some of the oldest people in the world the question everyone wants answered: what is the secret to long life?

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