Computer imaging technology makes it possible for neuroscientists to gaze ever deeper into the brain. For the first time,researchers in Bonn have observed ”runner’s high”,a euphoric state that develops during a marathon run,for example.The scientists assume that sports affect the brain in many different ways. For example,sports can be used to train the brain,just like exercise trains the biceps. Nerve cells and blood vessels grow when the body is trained – even at an advanced age. So gerontologists are also very interested in this research.