Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) ARDS ?
    ### Response:
    ARDS, or acute respiratory distress syndrome, is a lung condition that leads to low oxygen levels in the blood. ARDS can be life threatening because your body's organs need oxygen-rich blood to work well.
                
People who develop ARDS often are very ill with another disease or have major injuries.
    