Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Bronchiolitis obliterans organizing pneumonia ?
    ### Response:
    Bronchiolitis obliterans organizing pneumonia (BOOP) is a lung disease that causes inflammation in the small air tubes (bronchioles) and air sacs (alveoli). BOOP typically develops in individuals between 40-60 years old; however the disorder may affect individuals of any age.
    