A book explaining habits to protect brain health. - Title: 7 Habits Bad for the Brain - Author: Shigeyuki Hayashi - ISBN: 9784344981447 - Price: 740 yen (excluding tax) - Series: Gentosha Shinsho Thank you for viewing. Please check the condition in the photos. Please consider this item, understanding that it is a used item and there may be oversights due to amateur storage. I have other items for sale, so please take a look if you'd like. If you have any questions, please feel free to comment.