I remember being in the same position when I graduated college; I was so eager just to move on to the next phase of life, start UMDNJ. I wanted to get a jump start on everything as soon as I could. I did, in fact, purchase a physiology boards review book and browsed it over during the summer. In retrospect, I realize that it didn't make the slightest difference in my performance in physiology. The best way to study is by reviewing the professor's notes and your notes/scribes anyway...why is why I would not recommend spending time memorizing details/concepts if the professor will be teaching it differently anyway. Enjoy and savor every last moment of free time you possibly can. Don't mean this to scare you, but once youre in dental school, it's NUTS, put simply. It's not like college, where if you study your butt off, you reap the benefits and get great grades. You will be taking 85 credits during your first year...for most of us, that's roughly equivalent to 3/4 of our college career! We all know how to be good students--do the work, study, make outlines, etc. Now, you will be learning the art of dentistry in addition to that. Manual dexterity to the nth degree. You will be learning a WHOLE NEW SKILL...and you will have tests and practicals, and if your drilled tooth .5mm off from ideal, you lose points. So, point of this little ramble is that dental school is a beast. You have the didactics and lab courses, each of which are so challenging to begin with...and when you take them ALL together, the additive effect is monstrous. At UMDNJ, this wil become more evident to you in your second semester when you start drilling. Anyway, PLEASE please please...enjoy your summer! relax, travel, take the time to do things now, because your summers will be shortened greatly after this.