This book, a quick read, is designed to help all people, but particularly Type A individuals, to become healthier, happier, and highly effective leaders by simply modifying personality traits. It is a fact that Type A people are twice as likely to suffer from coronary heart disease than any other group type. Haines herself a Type A, has coronary heart disease and has undergone double bypass heart surgery. While there are many contributing factors, as discussed in the book, that cause heart disease, Haines believes that Type A trait modification can help to reduce the chances of contracting the disease.