What won’t we try to feel, perform, and look younger? While some aging-obsessed people transfuse the blood of their teenage offspring into their own, others are running away from canola oil as fast as their feet can carry them. So perhaps the legitimate research and efficacy of peptides—a new, or new-seeming, class of health and longevity products—explains why everyone is talking about them right now. Peptides are naturally occurring. They exist in your body at this very moment. They are not foreign to your body, and they do not change how your body works. “There’s a distinction between a peptide and a drug. Drugs are either synthesized or take a natural product and change it in some way. Drugs are meant to change your physiology— peptides are meant to enhance them,” says Dr. Chris Renna, founder of Lifespan Medicine, a preventative and longevity-focused clinic with outposts in California, Texas, and Florida. They..
