Reporter Thomas J. Moore. In his new book, Heart Failure, Moore argues that one of America's biggest health concerns - trying to reduce cholesterol - is a waste of time. Moore re-examines health studies and concludes that diet and exercise do relatively little to lower cholesterol, and almost nothing to increase lifespan. Moore also examines the little reported dangers of heart surgery and other coronary procedures. Part of Moore's book appears in the September issue of The Atlantic Monthly under the title "The Cholesterol Myth." Terry also talks with Dr. W.