The endocrine system is composed of glands that secrete hormones that regulate the activity of different body cells. The pituitary gland is often called the "master gland" because it controls the activities of other glands. 

Discuss a disorder associated with either hypo or hypersecretion of a specific hormone secreted by the pituitary gland.

Include in your discussion the answer to the following:

What effect will an increase or decrease in production have on the target organs?

What signs and symptoms are associated with this condition and how is it treated?