🔎 Today’s Daily Sift: Longevity Longevity is entering its credibility era. Today’s signal is the widening gap between aging science and optimization culture. New reporting published September 2 documents the rapid rise of experimental peptides promoted for muscle growth, recovery, weight loss, and anti aging. Some are legitimate medicines. Others, including compounds widely promoted online, still have little meaningful human evidence behind many of their claims. Peptide related hashtags had already generated more than 230 million TikTok views by May. Demand is moving faster than science. Then came the reality check. A new survey of health experts found that 89 percent ranked consistent exercise and healthy nutrition among the most important longevity factors. Experts also emphasized resistance training and adequate protein for people losing weight with GLP 1 medications because rapid weight loss can also mean losing muscle. And new LifeAfter90 research delivered the hard...