My interest in anti-aging goes back as long as my interest in health and nutrition, but in the past year or so I’ve done a deep dive into the topic. I’ve just turned fifty, and I’d very much like to live at least another half-century. I have long lists of things I’d like to both accomplish and experience, and I’ll need time to do that. I became a father on the later side, so I’d like to be around for my daughter’s adulthood. And for the most part, on most days, I greatly enjoy being alive. Why end the party early?