Ensure that he eats nutritious and healthy food (balanced diet
) and sleeps well. He needs to balance
every thing and take precautions so as not to fall down. You can read about precautions for elderly people from the internet and plan accordingly. Be in touch with the doctor and you can arrange for a doctor to visit
him on a regular basis. Being in the company of people will keep him in good mood. You can also discuss with your family so that quality time can be spent with him.