No.
Do yourself a favor, and enjoy your summer. Regardless of what you do there's no possible way that you can prepare yourself for the depth and speed of the curriculum. I'm not trying to be a butthole, but seriously: ENJOY YOUR FREE TIME. Two years from now when you're reading 18 hours a day pulling your hair out about tests and sim labs and COMLEX and this, that and the other you'll wish you had not tried to get a leg up when you could have been at a BBQ or on a beach. Plus, to cap it all off there's a chance you'll spend a week trying to learn something that isn't emphasized anyway. Everyone more or less starts from the same spot on day one, and it goes (relatively) slow enough for people who have been out of school for a year or two to get back into the swing of things.
I apologize if this comes across wrong, but spend time with your family and loved ones because once school starts in the fall the opportunities to spend time with your family (devoid of school distractions) is increasingly scarce.
I am not talking about serious, hard core studying. I am talking about simply studying for a couple of hours before I go to bed a couple of nights a week. Nothing too in depth. Just basic concepts. Just enough to where I know that I won't be overwhelmed. It's good to hear that they start off relatively slow. Your post does not come across wrong. I completely understand where you are coming from.