© Hemera/Thinkstock 1. Your Reading Comprehension We all know that person , the one who eats burgers and still loses weight while you eat salad and yogurt and can’t shed a pound. Turns out the problem may not be your appetite; it could be your reading skills. According to a study published in the Journal of Consumer Research , healthy-sounding labels are duping dieters. Read: Are Your Reading Skills Making You Fat? © George Doyle/Stockbyte/Thinkstock 2. Your Diet Soda Habit Put down the pop! Studies have shown that subjects who drink two or more diet sodas a day have waist size increases up to six times greater than those of people who don’t drink diet soda. These insidious sodas may be free of calories, but they're not free of consequences! Read: Is Diet Soda Making You Fat? © iStockphoto/Thinkstock 3. Lack of Sleep New research suggests sleepless...