Hello! How much it helps will depend on the school you are applying to, but it certainly can’t hurt! My daughter has a lot of extracurricular activities related to her intended major and in one case it earned her a scholarship to a school she wasn’t sure she would get into. She also received praise in on-campus interviews from 3 other schools — one is a reach, one she got accepted at, and one she is still waiting to hear from but is neither a reach or a safety. Though she drew nice comments from her first choice school, it was not enough to get an acceptance (it is a program with only 16 spots). It certainly doesn’t hurt to gain experience related to your major — and this way you know for sure what truly interests you. Good luck!