How do Okinawan citizens outlive the rest of the world when their diet consists of a large amount of fish?

Question

I know fish has its laundry list of benefits, but surely consuming a large amount can have detrimental effects due to mercury, microplastics and PCBs, yet it doesn’t seem to affect blue zones like Okinawa where their citizens outlive most other nations (with a large amount of centenarians) and consume large amounts of fish.

Why is this?

In: 5

Answer 1

Maybe they naturally have longer telomeres in their DNA?