answer: John has to stay in bed. #Person1# suggests exercising more, which has been said many times.
documents: #Person1#: How are you feeling, John?
  #Person2#: Oh, not too bad, but I've got to stay in bed.
  #Person1#: Do more exercises after you are healthy.
  #Person2#: Ok, I will. You have said that many times.
  #Person1#: Are you hungry? Do you want me to buy something for you to eat?
  #Person2#: No, there's no need. Thank you all the same.