There are a lot of things to do in the health care industry. You can become a medical officer, a nurse, a lab technicians, radiologists, etc. In order to choose a career in this niche, you will have to go for the necessary education. For example, if you want to become a doctor, you need to go for MBBS degree and later complete MD degree. If you want to become a nurse, you will have to study nursing. In order to become a radiologists, you will have to study radiology.  You will become successful only when you have spent many years acquiring the degree.