This podcast episode explores the structure, functions, and potential therapeutic applications of peptides. Peptides are small proteins composed of chains of amino acids that play crucial roles in various physiological processes. They can act as hormones, neuromodulators, or simply proteins, and exhibit pleiotropic effects, influencing multiple aspects of cellular function. The episode discusses specific peptides like BPC 157 and thymosin beta-4, highlighting their role in tissue rejuvenation and repair. It also explores the use of growth hormone-releasing peptides for metabolism, growth, and tissue repair. The potential risks and FDA approval status of these peptides are also discussed. Additionally, the episode covers peptides for longevity, vitality, mood, and libido, emphasizing the importance of caution and working with qualified physicians.