Nursing is the largest occupation in the healthcare field and will likely continue to be for the next several years. Due to the fact that the population of elderly people is growing, there will be an increased demand for healthcare and the professionals who provide this. Whether someone is a physician, physician assistant or nurse healthcare providers will be necessary to keep people in the best possible health at all times. Like a many of the healthcare occupations, nursing is a job that will require a certain type of education and training and also licensure to become a practicing nurse. Nursing assistants can become certified once they’re licensed. When completing the necessary education and passing the licensing exam an individual will often obtain nursing assistant certification. This will allow them to treat patients and begin this rewarding career.