My Grandpa and Mr Alzheimer

Mr. Alzheimer went silent for a few seconds.
"Just to love him," he said.
"But we do love him, very much. He is our Grandpa."
"Yes, I know that. What I meant before, is that the only thing you can do to help him is to keep telling him that you love him, especially when he is sad or upset. It will help him a lot to feel your presence and your love. Do you know what I really believe? That the heart remembers what the mind forgets. The hugs and attention of his loved ones, even when he can not recognize them, will make him feel better."
"This is the easiest we can do! But is love just enough or there are more things we can do for him?"