[This is the point where most of Yujin's peers would advise Anya not to be too curious about it, as it's not a subject fit for girls. Yujin, however, is unlike his peers in that regard. If Anya wants to learn more, she should learn more.]

How difficult it is would depend entirely on what sort of student you are. If you hold a lot of curiosity, along with an affinity towards biology and medicine, it's really rather easy to study.