This is a fact which should be borne in mind by all, but especially by those who are subject to any kind of skin complaint, or to gout or rheumatism. The latter disease, from which so many people suffer periodically, is, with a good show of reason, believed to be caused by a superabundance of acid in the blood. This acid is easily got rid of at most times, by means of the sensible and insensible perspiration; but if, through some error in diet, an irritable condition of the mucous membrane of the alimentary canal is produced, and a larger proportion of acid than usual is the result; and if at or about the same time something--a cold, or chill, for instance--interferes with the free action of the skin, it stands to reason that an attack of the old enemy, gout, or rheumatic gout will supervene, and the character of the attack will greatly depend on the condition of the patient's system at the time. If he be full blooded and robust it may be acute or sub-acute. Thus it often happens that at the very time when a man of rheumatic diathesis is in finest form, he is suddenly laid prostrate by the return of his foe. If, on the other hand, he be not of a full habit, the disease will be less violent in its nature, and this probably accounts for the fact, that men of spare habit are, as a rule, capable of weathering more rheumatic storms than men who have been cast in a larger mould. No medical man now-a-days thinks of prescribing for a patient without at the same time giving him advice as to what he should eat, drink, or avoid. Some hundred years ago, physicians were, we may presume, not so skilled as we are now-a-days, but neither were they so apt to lose themselves in that labyrinth we may call _causae morborum_, and they never lost sight of the state of the stomach and bowels. Indeed, the exhibition of aperients was often a kind of sheet anchor with them, with which they held on with determination when everything else failed them, and we can scarcely doubt that they were often right in doing so. Nor is the belief so common with the illiterate, that if a man can eat and drink moderately well, there cannot be much the matter with him, so very erroneous after all. Diet is of paramount importance with all of us, for the simplest reason possible. Our blood is generated from the food we eat, and as the blood is, so will the system be, which it has to nourish. No matter how clever a mania, or how rich, or how eminent, if he is guilty of errors in diet, he is but a golden calf with feet of clay. But he who lives judiciously in the matter of diet, possesses a truly marvellous advantage over his fellows who do not. A man in health should begin the day early. He ought to have his morning tub by half-past seven at the latest. He ought to dress leisurely, and have, if possible, a five or ten minutes' walk in the open air, before he sits down to breakfast.