Can you “catch” a behavior like you’d catch a cold? Lee Kravetz, co-author of Supersurvivors, thinks so. This week, he joins the GrottoPod to explain how. Kravetz (also a producer of our podcast) lays it out in his new book, Strange Contagion, which is released this week. Strange Contagion explores how social contagion — communicable ideas, thoughts and actions — turned volatile in Kravetz’s home of Palo Alto, California, creating a rash of teenage suicides. He also looks at how a similar kind of contagion helped the community recover from those tragedies.