The world's longest-living people almost never do this: What scientists learned from studying centenarians across blue zones

Research on some of the world's longest-living populations suggests that one common trait stands out: they almost never smoke. Scientists believe avoiding tobacco, along with maintaining strong social ties, staying physically active and managing stress, contributes to healthier ageing. While genetics also play a role, evidence consistently shows that avoiding smoking remains one of the most powerful ways to increase the chances of a longer and healthier life.