Happiness and good health can decline or improve with age depending upon important mental habits learned in childhood. Viewing the mind as a self-organizing system, Blakeslee shows how we can improve our attitudes by reorganizing "critical moments" where a tiny effort can profoundly affect future development to help you identify unhealthy attitudes, attitude tests given to three thousand elderly people in 1973 are included. Follow-ups 21 years later showed an amazing correlation between scores on these tests and good health. The 300 people with highest scores were 30 times more likely to be alive and well than the 200 lowest