The Mad House Madman tells it like it is
Listen to the Mad House Madman! He'll tell you how. The Madman gives ready, bite-sized prose to sneak into your personal statement to guarantee that you get noticed by the residency admissions committee. Actually, his suggestion for medicine residency applications sums up perfectly why I went into surgery instead:
I really love treating chronic disease. I particularly enjoy diabetes. It always fascinated me how blood glucose can go up and then down and then up, and then down. I find it particularly interesting how certain medications will help and then stop helping, and then I add another medication, and then that will help, and eventually it will stop helping. Sweet! (I mean that ironically)"