A positive attitude may bring good health and success. If you have ever read any book about success you will discover how an optimistic attitude will keep you healthier and tremendously increase your chances of success.An optimistic attitude has dramatically helped me improve my life in every single area. I overcame severe scalp psoriasis without a doctor and prescriptions. It's a fact that I wound not have overcome my psoriasis without a positive mental outlook. But you may be a skeptic. I.