Herbal Remedies Class 7 - The Endocrine System October 23, 2015 Mike Casey Don't miss this class! The endocrine system is crucial to understand the balance of how the body works chemically. Moods, emotions, happiness, sadness, adrenaline, metabolism, insulin production in the pancreas, stress, anxiety, sexual function, fertility and so many other life function are dependent upon the endocrine system!