From the accumulation of gas caused by fermenting food the transverse colon becomes very much distended. This interferes with the free flow of blood into and out of the heart, causing at times a very faint heart action from a lack of inflow, and again a very heavy, rapid action when the blood spurts through. This produces dizziness and vertigo, and sometimes where the inflow is greater than the heart can discharge, there is arterial overflow; the heart ceases action, and the victim falls prostrate, and sometimes dies. (See "Fermentation--The Symptoms," p. 426.) [Sidenote: Heart trouble caused by calcareous substances] Many cases of serious heart trouble are caused by habitual overeating, especially of grain and grain products. The calcareous substances from these products are deposited in the capillary vessels and in the joints, causing rheumatism, rheumatoid arthritis, sciatica, lumbago, gout, and other evidences of our lack of knowledge. When the one thus afflicted follows a sedentary occupation, taking but little fresh air and exercise, a hardening or stiffening of the arteries is usually the result. It is safe to say that if one would eat moderately, omit stimulants and narcotics, take but a limited quantity of starchy foods, a liberal amount of fresh air, deep breathing and exercise, heart trouble would be unknown. HEART TROUBLE--THE REMEDY [Sidenote: Diet for heart trouble] For the treatment of those who are afflicted with heart trouble I would suggest a very limited diet of nuts, fruits, salads, fresh tuber and green vegetables, eggs, and a limited quantity of coarse foods, such as boiled whole wheat, wheat bran, grapes (seeds and all), and all coarse vegetables, with an abundance of mild exercise and fresh air. [Sidenote: Exercise for heart trouble] In cases of heart trouble no greater mistake can be made than to cease exercise, as is often prescribed by well-meaning doctors. This is compromising with the enemy, with absolute certainty of ultimate defeat. Exercise, above all, is the very thing that is most needed. The patient should begin moderately at first, daily increasing the time and the tensity of the work until a balance is established between the intake and the outflow of blood to the heart. For foods to be eaten and omitted in cases of heart trouble, see p. 573. Also see menus for Fermentation. DIS-EASES OF THE SKIN There are two distinct kinds of skin dis-eases, namely-- 1 Local 2 Constitutional The _local_ is that which manifests itself in the form of pimples or eruptions which come and go, and are of only a few days' duration. The second, or _constitutional_ kind, is that which manifests itself by a permanent irritation or inflammation, which is classified as eczema, psoriasis, etc. DIS-EASES OF THE SKIN--THE CAUSE [Sidenote: Local disorders]