Mood Genes

Book excerpt: In Mood Genes, leading psychiatrist and biological researcher Samuel B arondes answers these questions in a way that renders a complex subjec t both exciting and understandable. Focusing on manic depressive illne ss, which affects about one percent of the population and has long bee n known to run in families, Barondes describes the fascinating hunt fo r genes--called mood genes--that influence the inherited vulnerability to severe mood disorders. He builds the compelling story of this hunt on the histories of two families riddled with manic-depression, expla ining what it means to have an inherited predisposition to a severe mo od disorder, how to find the mood genes that are responsible, and what will happen as mood genes are found.