ScienceHow a rare kind of dementia changed a German man's lifeTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceHannah Lesch03/24/2017March 24, 2017When Norbert became forgetful, his colleagues assumed depression. It was something else. This is his story.https://p.dw.com/p/2Zu58Advertisement