Dear Sir/Madam My name is Mahdi Heydari, applicant of studding medicine in China Medical University. After graduating from high school, I started studying electrical engineering at Azad University Central Tehran Branch in Sep 2012, because of my interest in mathematics and physics courses. I was an active, hard-working and successful student in that field. The witness of that is writing and publishing two books in mathematics. (Linear Algebra, 978-600-04-0681-3, Tehran, Iran and Multi variable Calculus, 978-622-00-0129-4, Tehran, Iran). But after a while and more familiar with the field of electrical engineering, I felt that pursuing this field and working in this area would not satisfying me. I had grown up in a family where my parents were both doctors. For years, I've seen their hardships in this job and I've always been wondering what causes them to be interested in doing so. During studding in the university, I was thinking more about this and found the secret is the service that is being given to others in medicine. The pleasure physicians take from the treatment of a patient; no other person can experience it in other businesses. I felt the only job that could satisfy me is medicine. So, in spite of my success in the field of electrical engineering, I gave it up in Dec 2015 and decided to start studding medicine. I attended a medical entrance exam in Iran (June 2016) unfortunately I was not successful due to the high competition and limited capacity. Subsequently, according to the rules, permission to participate again in entrance examinations was subject to military service. It was possible for me to leave Iran and study at universities outside of Iran. But in terms of Iranian law, passing military service is required. Also, because after graduation I plan to return to Iran and work in Iran, I decided to complete the military service before continuing study. So I did my military service in Jan 2017 – Feb 2018. Then I started to strength my English language. I hope I will do my best job to study medicine to make my dream come true. China Medical University, is one of the best universities in field of medicine in China and I am sure that I can fulfill my ambition by studding and working in field of medicine. I feel I have a strong desire, good communication skills and the commitment to undertake the study of medicine. Sincerely Yours, Mahdi Heydari