Each morning millions of Japanese start their day with radio calisthenics. This time on Japanology Plus, our theme is radio calisthenics. Practically everyone in Japan—young and old—is familiar with these exercises, which started 90 years ago and spread to parks, schools, neighborhood associations and workplaces all over the country. Our guest is nonfiction writer Hidemine Takahashi, who has studied radio calisthenics closely. And in Plus One, some of the key points of the exercises.