Being a sports psychologist and working with people who need to maintain constant motivation, Paul has seen behind the scenes of being tirelessly motivated. Here he shares with you a glimpse of the psychology of motivation and what it takes to sustain it.Dr Paul McCarthy is a lecturer and researcher in psychology at Glasgow Caledonian University. He practises privately as a sport and exercise psychologist at St Andrews Links Golf Academy, where he supports amateur and professional golfers on various international tours.