Healthcare is a service industry that is involved in the maintenance or improvement of health. This service includes the diagnosis, treatment, and prevention of disease, illness, injury, and other physical and mental impairments in human beings. Health care providers are trained in medicine, chiropractic, dentistry, nursing, pharmacy, social work, psychology, occupational therapy, physical therapy and other health professions. Health care includes primary care and public health. Here are some health care tips to live a healthy life.