Final answer:
Cushing's syndrome is caused by excessive production of cortisol.
Step-by-step explanation:
The disorder in Cushing's syndrome is due to excessive production of cortisol.
Cushing's syndrome is caused by hypersecretion of glucocorticoid hormone cortisol. The most common cause of Cushing's syndrome is a pituitary tumor, which leads to excessive production of ACTH, the hormone that stimulates cortisol production. The disease produces various signs and symptoms, including obesity, diabetes, high blood pressure, excessive body hair, osteoporosis, and depression.
Treatment of Cushing's syndrome depends on its cause and may include surgery to remove a tumor or medications to suppress the activity of the adrenal glands.