<p>Taking classes over the summer is generally a bad idea for these reasons:</p>
<p>1) Summer courses are typically condensed versions of regular semester classes, which means they probably don’t cover all the material that would be covered during the semester.</p>
<p>2) Summer courses are typically not as difficult as their fall/spring counterparts because the students who choose to take summer classes tend to not be as competitive as those who take it during the fall/spring. This makes the class easier if it’s curved (meaning your competition is not as strong, so it’s easier for you to get a good grade).</p>
<p>3) 1&2 combine to make it look like you’re “gaming the system” meaning that you are trying to take the easy way out of an important prereq class. Generally speaking, it’s best to limit the number of “red flags” on your application, and it’s pretty well shown prereqs over the summer is a red flag.</p>
<p>4) Summers are important times to complete non-academic things such as research, clinical work, volunteering, employment, etc. These things are also tremendously important to your med school application. If you spend your summers (foolishly, in my opinion) on classes, you don’t get to use that time to do other important things. Save classes for the fall/spring.</p>
<p>5) Another kind of esoteric point is that if you’re taking your prereq classes over the summer, you’re not taking them during the year with the competitive students, and you’re not forcing yourself to manage your time better to juggle all the things you want to get done during a normal semester. Med schools like to see that you can handle academic challenges, and one way for you to demonstrate that is to do well in multiple difficult classes at the same time during the fall or spring semester.</p>
<p>Generally speaking, the only classes I would advocate taking over the summer would be those that are unrelated to med school, those that are exclusively offered over the summer, or those that, by taking them in the summer, you open space to take harder classes in the fall.</p>