Dr. Diana van Heemst, a biologist at Leiden University Medical Center specializing in aging, dives into the fascinating world of thyroid biology. She discusses how the thyroid gland influences metabolism, energy regulation, and overall health. Listeners learn about the crucial roles of thyroid hormones T3 and T4, the importance of nutrients like iodine and selenium, and the implications of thyroid conditions on longevity. The conversation explores thyroid function variations, the impact of aging on hormone health, and the significance of early detection for well-being.