To get to the relevance of "how," we must overcome the spurious debates about "what." You certainly can't get there from here if you can't acknowledge where "there" is. We do know, but our culture needs to admit that we know. The profitable market for pixie dust needs to disappear.
I consider it a societal travesty that hyperendemic obesity and the metabolic mayhem that often follows in its wake are treated ever more frequently, in ever younger people, under general anesthesia. Our answer to obesity is, it seems, oblivion.
This holiday season, as our own thoughts turn aspirational for ourselves and those we love, permit to suggest the logic of not just wishing for health and long life, but gifting them. I believe the right approach allows for exactly that.