ScienceExercise and motivation - the expert's opinionTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience12/27/2018December 27, 2018Why we all need to stop making excuses and start exercising: In Good Shape Fit talks fitness and motivation with sports psychologist Prof. Ralf Brand from the University of Potsdam.https://p.dw.com/p/3AQNGAdvertisement