Buck and Dr. Nathan Bryan delve into the pivotal role of nitric oxide in human physiology, with a particular focus on cardiovascular health and aging. Dr. Bryan breaks down the body’s nitric oxide production processes, how everyday lifestyle choices impact its levels, and what happens when there’s a deficiency. He also explores the surprising connection between oral hygiene and nitric oxide, the risks associated with proton pump inhibitors, and the promise of emerging products designed to boost nitric oxide levels. Additionally, Dr. Bryan addresses genetic factors such as MTHFR polymorphisms that can impact nitric oxide synthesis, shedding light on their broader implications for health and longevity.