Most people take breathing for granted, but for thousands of people who suffer from breathing problems, each breath is a major accomplishment. Respiratory care practitioners treat patients of all ages from infants to adults. They provide relief, though temporary, to patients with chronic lung disease. They also provide emergency care to people who have suffered from heart attacks, strokes, drowning and shock. They teach patients and their families how to use breathing equipment and how to get the most out of their daily lives. Respiratory therapists mostly work in hospitals but they also work with home health agencies, respiratory therapy clinics, and extended care facilities.