The endocrine system is made up of glands that produce hormones to regulate various bodily functions. Key glands include the hypothalamus, pituitary gland, thyroid gland, pancreas, adrenal glands, ovaries, and testes. The hormones released include growth hormone, thyroxine, insulin, cortisol, estrogen, progesterone, and testosterone. Proper endocrine health relies on diet, stress management, exercise, sleep, and avoiding toxins.