Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) HAIR-AN syndrome ?
    ### Response:
    HAIR-AN syndrome is a condition that affects women. It is characterized by hyperandrogenism, insulin resistance, and acanthosis nigricans. Insulin resistance is a condition in which the body produces insulin but does not use it properly. This causes the pancreas to produce more insulin.
    