Such long survivals constitute, however, a great exception in arteriosclerosis, and it usually happens only in cases where there are no symptoms of that most dreaded form of arteriosclerosis, i.e., the sclerosis of the coronary arteries of the heart. These arteries are probably the most important ones of our body, for they provide the muscles of the heart with the nourishing blood without which they could not do their work. It is the sclerosis—the hardening—of these arteries which, causing an obstacle to the passage of the blood, is the most frequent cause of rapid death in arteriosclerosis, often in comparatively young people. It is a sad fact, that such a condition, as so often is the case with arteriosclerosis, can exist without exhibiting any marked symptoms of it being present. A very frequent symptom of sclerosis of the coronary arteries is attacks of _genuine_ angina pectoris (stenocardia),—to be distinguished from the pseudo-attacks of angina pectoris of neurasthenic persons. In such attacks there are strong radiating pains in the heart region, and a feeling of great anxiety, of utter annihilation, and of instantaneous death; and indeed not so seldom such attacks may terminate in death. These attacks may be considered as a warning of nature that such persons stand on the verge of a precipice and thus urging them to the greatest precautions to avoid anything that may bring about such an attack. From my own observations, rapidly fatal attacks of angina pectoris in such cases of arteriosclerosis happen frequently after a heavy dinner. The stomach being distended, the diaphragm is pushed upward and thus impeding the movements of the heart, which has not sufficient space for the play of its muscles. Such a condition may also be often caused by the ingestion of dishes causing flatulence. In consequence heavy dinners and flatulent foodstuffs must carefully be avoided, and I declare any person who presents attacks of genuine angina pectoris as a determined suicide if he continues to indulge in them. There should be taken 5 small meals a day, so as to avoid the keen appetite which results in overloading the stomach. Foodstuffs causing flatulence such as cabbage, fried potatoes, etc., should, above all, be avoided. Food that is rich in cellulose (wood fiber) is strictly forbidden in such cases. For further details on food producing flatulence I must refer to my above-mentioned diet book, which contains a special chapter on the best food in flatulency and also a list on the amount of cellulose (wood fiber) in different articles of food. For the treatment by drugs refer to the chapter of this book on arteriosclerosis. Besides moderate habits, including the use of very light cigars in the smallest possible quantity (if smoking cannot be given up entirely), overexcitement of any kind, especially sexual, as also overexertions (_hill climbing_), must strictly be avoided. Transgression of these commands, especially hill climbing, may sometimes