17-43 Segment 1: The Biology of Addiction

Scientists are learning the specific workings of the brain when it is addicted to a substance or behavior, and showing that all addictions are similar.

17-43 Segment 2: Preparing for Disaster

Many people will have to deal with a natural disaster at some point in their lives. Two civil defense experts discuss how to be ready before it comes.

Medical Notes 17-43

A look at the top medical headlines for the week of October 22.