My husband has 2015-20 My husband has 15-20% , heart function. In 1995 , he had double valve replacement and 1 valve repair due to childhood illness of rheumatic fever. In 2005, due to Coumadin and hit on head, he suffered brain injury and ensuing paralysis and brain surgery according to his neurosurgeon. Recently, he has had pneumonia and a severe infection and is in rehab. He is cured of pneumonia and the infection. I am worried. What can I do to help him improve outside of physical therapy, diet and weight gain?