This is a brief lecture I give my students after we cover neurons and the brain in my psychology class. I briefly describe what the Endocrine System is, explain the role of the hypothalamus, compare and contrast hormones to neurotransmitters, and describe the following glands: pituitary, thyroid, parathyroid, adrenal, pineal, pancreas, and the gonads (there are separate slides for ovaries and testes as well).