It is not only in connection with Brain Week that we bring you a reflection on the current topic. How widespread is Alzheimer's disease in our country? How many people have it?  What is the current state of Alzheimer's medication? Do some drugs help even a little? And what about our personal prevention. How should we live and what should we really care about? Tomáš Petrásek from the Institute of Physiology talks about all this topics in the Czech Radio.