Hello wonderfull people of reddit and lovers of science! I would like your advice. I am currently finishing up my 3rd year as a Biochemistry and Molecular biology undergrad and I can not decide if I want to go to grad school or not. I am having a growing interest in the field of cancer biology and as a backup interest i think I would find drug discovery to be very interesting. I have heard many opinions about graduate school, some being good and others bad. Some will say that you can get into good research positions without a PhD while others say you really need a PhD to do research. My main issue is this, I want to do research in one of the fields stated above (or similar) because I want to help people without becoming a doctor. However I have no intention on having my own lab, or becoming a full professor and I want a decent social life. I can handle hard work days and long hours but I'd like most of my weekend and some vacations. I wouldn't mind teaching sooner or later though. I know for a fact though that I do not want to go through a PhD program if I could get to the same point in my career by just sticking with a BS. Please let me here your stories/advice. Thanks everyone!

EDIT: I am not really thinking about going into academic research, the teaching I refer to is either as an adjunct professor or as a high school teacher. Thanks!