Mood disorders, such as depression and manic depression, affect up to 10% of the population. Marja Bergen is one of those people. Over the 30 years that she has had manic depression, she has gradually adopted a lifestyle that makes it possible not only to cope, but to live a full and productive life. In Riding the Roller Coaster, she shares very practical tips on such things as escaping the blues before they grab you, what to do when you don't feel like doing anything, and keeping life stable.