As part of a school project, I need to 'interview' a doctor, and after certain research someone recommended this site. If you are a doctor, can you answer these questions? How long did you study to be an MD? What was the most challenging part of your education? What is the main cause of illness in the patients you treat? How does healthy eating, exercise, and being happy affect the health of your patients? What are the primary method(s) you use for treating illness? Is healing for most conditions possible? Are there side effects to the treatment you offer patients? What is the most rewarding part of your job? If you could teach young people one lesson about their health, what would it be? I would really appreciate it if you complied.