Nick mentioned to his doctor at his annual physical that his skin color was darkening. after tests, the doctor diagnosed nick with an autoimmune disease that affects the adrenal cortex, resulting in insufficient levels of adrenal cortex hormones. what disorder does nick have?

Addison's disease is a disorder in which the adrenal cortex is damaged and the adrenal gland does not produce sufficient steroid hormones (cortisol and aldosterone). Symptoms of Addison's disease occur gradually and they include darkening of the skin, abdominal pain, weakness, and weight loss. For the question above, Nick have Addison's disease.