Like the latest single from Lady Gaga or Real Housewives episode, books are also good company during a workout. A suck-you-in plot may keep you on an exercise machine longer to finish a captivating chapter, according to Weight Watchers magazine. Michele Olson, PhD, professor of exercise physiology at Auburn University, told the magazine that in order to avoid neck or shoulder pain, readers should use the machine’s book ledge and try not to round their shoulders while working out.