More Americans are living longer than ever before. The population of people over the age of 65 is steadily growing and so is the need for healthcare professionals to care for them. That's one of the major reasons the health services industry employs more than 11 million people and expects to employ even more in the future. Another reason is that there are so many ways to provide health services in a country renowned for the quality of care: dental hygienists to help keep our smiles healthy and bright; social workers to help us cope with the practical issues caused by illness and disability; physical therapists to teach us how to move again after an illness or accident. The list of caring professionals goes on and on.