Pineal gland (plays a major role in sexual development, sleep, and metabolism)
Pituitary gland (affects almost every physiologic process of the body)
Thyroid gland (regulates the body's metabolism, heart and digestive functions, muscle control, brain development, and maintenance of bone mass)
Parathyroid glands (regulate blood calcium and phosphorus levels)
Pancreas (secretes enzyme-producing cells responsible for digesting carbohydrates, proteins, and fats)
Adrenal glands (assist in the regulation of metabolism, stress response and blood pressure, and support of immune system health)
Ovaries and testes (function in sexual reproduction and determine male and female sexual characteristics)