Ikaria, located in the Aegean Sea, is one of Greece's many islands. What sets it apart is how long its residents live. Known as the island of longevity, one in three of its residents make it to their 90s and rates of dementia and some other chronic diseases are very low, according to the Blue Zones website.
The island is one of the world's five Blue Zones, which are regions of the world where people regularly live about a decade longer than the US or Western European average.
In Ikaria, people also tend to have lower rates of cancer, heart disease, and depression than in the US, The Guardian reported.
The first Blue Zone, Sardinia, Italy, was identified by researchers Gianni Pes and Michel Poulain, and the concept was built upon by Dan Buettner, who named four more and has explored the habits and lifestyles of people in all five locations for the past 20 years.