They found a new genetic variant, common among villagers, which appears to protect the heart by lowering levels of "bad" fats and cholesterol.
Despite a diet rich in animal fat, the people of Mylopotamos in northern Crete do not suffer from cardiovascular disease.
And they really love their cheese.
What's special about these Greek villages?
The isolated villages of Zoniana and Anogia are high up in the mountains on the island of Crete.
Few people move in or out of the villages and the inhabitants are known for living well into old age.