In addition to the comments posted above by
@Ebayit ... I would encourage you to "begin to think" about becoming more familiar with different UC Davis professors/PIs whose research projects might interest you in the near future.
1. Although you're still relatively new to UG life, it can never hurt to ask around your campus to learn about
different research opportunities at UC Davis. Scope out the scene. You can learn more about various research projects (by being a student in UG classes, such as bio and chemistry), reviewing the UROP list at your school, asking juniors and seniors, asking Teaching Assistants/graduate students, etc. Find out *what* is going on at your school.
2. You can also look into clinical/volunteering opportunities offered at the UC Davis School of Medicine or the UC Davis School of Veterinary Medicine. Anyway, you get the general idea. You might discover some amazing clinical opportunities at these two schools and, in so doing, you might obtain valuable passive/active shadowing experience. Clinical experience, as well as non-clinical volunteering is important: quality is better than quantity. Look around, ask around, and explore ... as a freshman, time is on your side.
3. If you eventually find a research study that really interests you, you can contact the prof/PI and ask about working as a student-researcher-assistant on the professor's research team. In so doing, you will gain valuable
"scientific method" research experience and the professor will have a (presumably) chance to become more familiar with you, as well as with your skills as a promising student-researcher/future medical student. Why is this important? Later on, you might want to ask one or more of these professors to become your LOR writers for medical school and professors (who know you well) should be able to write strong LORs for you.
Thank you.