The foundational biological science dedicated to the endocrine system—its anatomy, the synthesis and secretion of hormones, their transport, receptor interactions, and the physiological effects they produce. It is the core discipline that provides the detailed map of chemical signaling which applied fields like hormonal engineering and technology then seek to navigate and modify.
*Example: "Endocrine Sciences 101 was a deep dive: from the gene expression for insulin in pancreatic beta-cells, to the negative feedback loop of the HPA axis, to how a malfunctioning pituitary can make a grown man lactate. It was less about 'what hormones do' and more about 'how this unbelievably precise chemical mail system works.'"*
by Abzugal January 30, 2026
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