In this episode, Brent speaks with Dr. Anne Cappola, a leading endocrinologist at the University of Pennsylvania, about thyroid health. Using both clinical insight and Brent's personal experience as a parent, they break down what the thyroid does, how hypo- and hyperthyroidism show up in real life, how these conditions are diagnosed, and what treatment actually looks like. The discussion covers common symptoms, when testing matters, why TSH is the key marker, and how thyroid health fits into aging, longevity, and everyday wellbeing. Hope you enjoy.