Yes, Sardinia has a problem of depopulation but I wouldn't agree with you about Sweden, John:

"It's often poorer and more arid areas where people have had natural access to healthy food without indulging. They haven't eaten a lot, but they've eaten well,"

https://www.thelocal.se/20141216/the-swedish-town-with-the-most-100-year-olds/

Thank you for reading.