Adrenal glands are triangle-shaped glands located on top of the kidneys. They produce hormones such as estrogen, progesterone, steroids, cortisol, and cortisone, and chemicals such as adrenalin (epinephrine)and norepinephrine .
When the glands produce more or less hormones than needed by the body, you can become sick.
Related topics:
Parker KL, Rainey WE. The adrenal glands. In: Griffin JE, Ojeda SR. Textbook of Endocrine Physiology. New York: Oxford University Press; 2004:319-348.