"It seems hardly possible that men of eminent attainments in the profession should so far forget one of the most fundamental and universally recognized laws of organic life as to promulgate the fallacy here stated. The fundamental law to which we refer is, that all vital phenomena are accompanied by, and dependent upon, molecular or atomic changes; and whatever retards these retards the phenomena of life; whatever suspends these suspends life. Hence, to say that an agent which retards tissue metamorphosis is in any sense a food, is simply to pervert and misapply terms." Non-alcoholic physicians unite in declaring that the retention of waste matter in the system, caused by alcohol, invites disease, and tends to inflammatory action; and in illness retards, and frequently prevents, recovery, for the germs of disease remain longer in the body than they would were it not for the delay in the passage of effete matter. _Alcohol not only hinders the blood in its work of tissue nutrition; it also prevents the full oxidation of the blood in the lungs._ "In order that a steam engine may work and keep warm it is not merely necessary that it have plenty of coal, but it must also have a draft of air through its furnace. Chemistry teaches us that the burning in this case consists in the combination of a gas called oxygen, taken from the air, with other things in the coals; when this combination takes place a great deal of heat is given off. The same thing is true of our bodies; in order that food matters may be burnt in them and enable us to work and keep warm, they must be supplied with oxygen; this they get from the air by breathing. We all know that if his supply of air be cut off a man will die in a few minutes. His food is no use to him unless he gets oxygen from the air to combine with it; while he usually has stored up in his body an excess of food matters which will keep him alive for some time if he gets a supply of oxygen, he has not stored up in him any reserve, or, if any, but a very small one, of oxygen, and so he dies very rapidly if his breathing be prevented. In ordinary language we do not call oxygen a food, but restrict that name to the solids and liquids which we swallow; but inasmuch as it is a material which we must take from the external universe into our bodies in order to keep us alive, oxygen is really a food as much as any of the other substances which we take into our bodies from outside, in order to keep them alive and at work. _Suffocation_, as death from deficient air supply is named, is really death from oxygen-starvation."--Martin's _Human Body_.