Oxford is a Liberal Arts institution and has a myriad of courses that you can and should select from - take full advantage of the offerings. You do not have to major in a science to be successfully admitted to a health professions program. If you are serious about preparing for a health profession career, start selecting basic science pre-requisite courses as an opportunity to test aptitude and interest in the sciences. Do not overload; balance your schedule. Make sure you incorporate required pre-health courses into your curriculum.