Middle school gym class. What exactly comes to mind when you hear those words might just determine your feelings on exercising in your adult life. Researchers from Iowa State University surveyed more than 1,000 Americans, aged 18 to 40 years old, using a specially created lengthy online questionnaire. Scientists then analyzed participants’ positive or negative attitudes toward gym class with the participants’ current behavior and attitudes toward physical fitness. Participants also were asked to describe in detail, their best and worst memories from gym class. For those who disliked gym class, their worst memories typically involved embarrassment, bullying, or a general lack on enjoyment. Seven percent of people shared their best memory as a day when they skipped gym class or didn’t have to take it any more. Not surprisingly, people who reported enjoying gym class were more likely to respond that they enjoy physical activities today. They were also…