Mexico, officially the United Mexican States, is a federal constitutional republic in North America. Working may require a work visa, which is difficult to get if you want to freelance for a short time. Most of the government-funded universities in major cities (state capital) have short courses on history, gastronomy, and cultural subjects, and most of them are almost free.

A Doctor of Medicine is a highly advanced degree that requires about six years of work. Many M.D. programs require a combination of classwork, research papers, and hands-on clinical practice to certify students as medical doctors.