Even the Peloran Treatments don’t guarantee good health, don’t make us immune to abuse. Not exercising, or eating poisonous junk will still mess you up. The treatments simply give us a leg up on anyone who doesn’t take them. The Chinese and the Russians outlawed the “dangerous alien treatments” for instance. Of course they developed their own versions of the treatments. Not as effective, but a quantum leap compared to “natural” humans.
The Russians and Chinese colonized the planets and moons of Alpha Centauri B. Between the two polities, they basically control the entire system. Only a handful of colonies are from nations not affiliated with those two powerhouses, and none of them have official ties with the Western Alliance. Unofficial ties are a completely different matter of course. Even Russian and Chinese colonists love Alliance trade goods after all, especially the proscribed stuff.
The modern Normans first formed as a people when Norse mercenaries colonized Normandy. They promised to protect the coasts from other Norse raiders, and intermarried with the local French. As time went by, the Normans married into even the royal families of both England and France. This is one branch of my family. The blood of the Norse, the French, and even the English flows through us there. It is perhaps no surprise that we can have lively debates.
When you’re healthy, you can live a long time. Before the Peloran Treatments, a healthy person could live over a century pretty easy. Mostly, the treatments just improve that, boosting our bodies’ ability to heal themselves. To help them properly replace dying cells with healthy new ones. That’s the secret to remaining young far beyond the mere three or four decades of five centuries ago. Health.
The Alpha Centauri B system contains three terrestrial worlds, two of them easily habitable, two gas giants, an asteroid belt, and nine major moons. The asteroid belt, the remains of what might have been a planet were it not for the tidal forces of Cen A, grants easy access to raw materials. This, amongst many other factors, makes the star system the greatest center of production and mining short of the Terran system herself.