04/08/13 - Monday’s Topical Currents looks at the science involved in why we win . . .  or lose in competition.  What gives peak performance?  For some, high-pressure brings out the best.  For others, stress avoidance gives the groove.  Employees who just want to “get through the day” will never reach lofty goals, and fear of mistakes dampens ambition and success.  Our guest is Po Bronson co-author of TOP DOG: The Science of Winning & Losing.