Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) familial hyperaldosteronism ?
    ### Response:
    Familial hyperaldosteronism is a group of inherited conditions in which the adrenal glands, which are small glands located on top of each kidney, produce too much of the hormone aldosterone. Aldosterone helps control the amount of salt retained by the kidneys.
    