Going to college after working in the real world for a few years, I have to lough at a lot of the stuff pre-meds worry about. Help some random Joe that sits to your right, left, in front, or in the back of you is not going to hurt your chances of getting into medical school. What will hurt your chances of getting into medical is YOUR OWN performance.
Chances are that when a person asks for help on a topic they don't understand the topic. So even helping them understand a topic won't lead to them automatically getting more points on an exam.
The MCAT is the greatest equalizer out there. You can have the greatest GPA you want, but if you screw up the MCAT you hurt your chances. The skills, knowledge, work ethic, and all of the rest of your days in college comes down to those few hours in front of that computer testing YOUR ACUMULATED knowledge.
I always laughed at the pre-meds who sat with their head in the o-chem textbook for eight hours straight.
I went to college with a lot of people who were pre-med and are still pre-meds. Most of them major in biology or biochemistry because there is a way to take some very easy courses and get a killer GPA. As so they think. Many of these students only need to take 12 credits outside of the general chem, o-chem, physics, and general biology courses to graduate. So they just take A&P, nutrition, biotechnology, immunology and pathology and graduate with a killer GPA (unless they sucked at the chemistry courses). Out of all of the pre-med students that I knew in college (around 25), I only know of one student that got into medical school. Why? Because their MCAT scores suck!!!!!!!!!!!!!!!!!!!!! and they went to college at a crappy small liberal arts college.
Being pre-med is not that hard folks. If you have the desire, the want to be a doctor, have the ability to learn complex material, and are a good test taker and work hard towards the MCAT, you can get into medical school.
General chemistry is easy. About all you do is solve math problems and other similar equations.
General biology: this course is easy. All you really do is learn the very basics of biology.
Physics: again, can you solve math problems.
O-chem: this class is actually hard because of the nature of the material.
Biochemistry: this class can be hard depending on the professor. But memorize the book and you will do just fine.
Immunology, pathology, and A&P: Just memorize the material and you will do just fine.
Need to volutneer at a hospital? Easy. call up or email doctors asking if you can spend a few hours a week shadowing them. Heck, I spent 300 hours shadowing the professionals in the field I"m workign to while taking classes, working, and having a social life.
Want to do research? Try to find a student job in a lab and learn how science is done. Don't need a job to pay bills? Volunteer in a lab until you get a paid position.
Need a job to pay bills? Get a job that does not require much work. Why not work in the library.
DO YOUR SUMMER INTERNSHIPS PEOPLE.
Get around a 3.6 GPA, get above a 30 on the MCAT, do some research, volunteer, and you are bound to get into A medical school.