Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Gaucher Disease ?
    ### Response:
    Gaucher disease is a rare, inherited disorder in which you do not have enough of an enzyme called glucocerebrosidase. This causes too much of a fatty substance to build up in your spleen, liver, lungs, bones and, sometimes, your brain. This prevents these organs from working properly.
    