What exactly did they find - how to actually live longer?

Those headlines usually throw everything together because there's no single magic trick. Scientists figured out long ago that longevity is a combo of several factors: yeah, diet and exercise, but also genetics, sleep quality, social connections, stress levels. If you read something about a specific breakthrough, it's probably about confirming old observations or finding a new mechanism for how it actually works in your body.

Most often in popular articles they focus on just one thing: someone says the key is a Mediterranean diet, someone else says regular walks, others write about how important socializing and family are. All of that works, but not on its own. A person who eats right but lives in complete isolation and doesn't sleep won't last long.

So basically, if you really want to figure it out, look at the actual study, not just the headline. They usually say which specific factor they studied and what their sample was. The general rule is simple: movement, decent food, sleep, and hanging out with people - that's the whole secret.