That may or may not be true, but we will all grow old, get sick, and die unless we encounter a fatal accident or get sick and die before we get old.
It's worth reading Cicero's essay On Growing Old before growing old. Appropriately enough, that edition is in large print. Meanwhile, I endorse efforts to remain physically and mentally as vigorous as possible for as long as possible. It makes life more productive and fulfilling but, with luck and if we want to, we might end up old.