If your high school son or daughter’s first class starts before 8:30, that might not be such a good thing for their health and academic success. As Chicago Public Schools announces changes to start times for some schools, we talk with the Centers for Disease Control and Prevention about a recent study on what effect the timing of the opening bell has on teenagers. The grocery industry has undergone a lot of changes in recent years to meet the new demands and realities of today’s consumer: more pre-made, hot to-go food, wine bars and cafes and often a more social atmosphere. Dollars stores are changing their business model too, by offering more food, often of the gourmet variety. We have that story from Monica Eng. Crain’s Chicago Business real estate reporter Dennis Rodkin stops by with details about the return of architect Helmut Jahn to Chicago. And we hear another perspective on the problem of prison overcrowding from a victim’s rights advocate.