Italian village with the most 100-year-olds has science seeking clues

(From left) Chillotti, mayor of Perdasdefogu, Stori and Mura. Stori is the village's youngest 100-year-old and celebrated her birthday on Aug 16, 2022. Photo: Salvatore Mura/private/dpa

Perdasdefogu looks like any other Sardinian village with a pre-Romanesque church, central square and charming little shops.

It has all you need, but otherwise seems pretty unremarkable, until you realise it is home to more centenarians than anywhere else in the world.