Income varies according to the style of medical practice a doctor chooses. Most doctors like the constant challenge of their jobs. No two days are alike, varying with the patients that come into the office. Most importantly, NDs enjoy helping people with their most important possession their health. One of the problems is that some people just want to be fixed and are not interested in helping themselves to better health.
Doctors also study scientific journals and books and, of course, manage clinic business.
A person who is interested in people. A person who has a sincere interest in talking to people and helping them to solve their health concerns in a constructive and naturally therapeutic fashion. As noted, people skills are most important. But also communication skills and strong clinical expertise in the basic sciences. Students should have a good comprehension of biology, chemistry, physics, sociology and computers.