Book excerpt: When eighteen-year-old Mark returned home from his first semester at college, his family thought he was on drugs. In fact, he was suffering from manic depression, a devastating mental illness that affects millions of Americans and their loved ones. Diane Berger is Mark's mother and Lisa Berger is Diane's sister. Together they share both the intimate and inspiring story of how their family coped with Mark's illness and the valuable information they gathered about manic depression over the course of his treatment: up-to-date facts on drugs, doctors, therapy, insurance, and other resources. They reveal how to identify the symptoms of manic depression and avoid a false diagnosis, which treatments work and which don't -- as well as the emotional experience of a mother battling for the sanity and well-being of her child. Here is the story of emotional and dramatic power; here also is an invaluable guidebook through the medical mazes and challenges of surviving mental illness.