Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Oxygen Therapy ?
    ### Response:
    Oxygen therapy is a treatment that provides you with extra oxygen, a gas that your body needs to work well. Normally, your lungs absorb oxygen from the air. However, some diseases and conditions can prevent you from getting enough oxygen.
                
Oxygen therapy may help you function better and be more active.
    