The medicine doctor Walter Hartenbach has affirmed, on the basis of long years researches and on the basis of more than 1000 heart operations, that there is no link between increased cholesterol and heart attach or atherosclerosis. That cognitions he has published in the book named “Lie about cholesterol”. Earlier mentioned proves that increased cholesterol is not dangerous for human health. In the book the main factor that can cause the heart attach and atherosclerosis would be genetic factors, stress, hypertension, diabetes, adiposity. Doctor Hartenbach explains that we can prevent the atherosclerosis and heart attach by healthy life styles.