My father has been diagnosed with small cell lung cancer and is receiving chemo. He is living with us at the moment and every day I encourage him to drink water and take short walks around the house or up to the paper shop.
He eats freshly prepared food everyday and has a good appetite most of the time but complains of backache. This often disappears after the brief walk.
Is the exercise recommended over sitting all day in a chair which he would happily do if not encouraged?