Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Asbestos-Related Lung Diseases ?
    ### Response:
    Significant exposure to asbestos fibers causes asbestos-related lung diseases. "Significant" usually means you were exposed for at least several months to visible dust from the fibers.
                
Asbestos fibers are very small. When you breathe in, they can get stuck deep in your lungs.
    