[Footnote 90: The same amount of the stimulant alone (coffee, tobacco, wine, or what not), _without_ the hard work that tended to aid in its elimination, would have made quicker work of it. What such a person requires under these circumstances is to give his brain rest from severe mental application. Nor is it, in my opinion, sound doctrine to say that a weary-brained man may rest by rushing at muscular exercise, or _vice versa_. To a certain extent the rule holds good; but the exhausted or very tired man requires a period of absolute rest, before taking up any form of work. At the proper time, however, he will be improved by taking up active exercise in the open air, and performing daily such regular muscular and literary work as he can comfortably, however little this may be, without any sort of stimulation other than that derived from simple, nutritious food and pure air. (See article on Consumption for hint as to exercise.)] [Footnote 91: “Indigestion as a Cause of Nervous Prostration,” _Popular Science Monthly_, January, 1881.] The illustration here given is one of the worst cases, but such instances are frequently observed among the class usually designated as brain workers, not only, but among business men, whose work, scheming, mishaps, and unnatural habits altogether, bring them to sick-beds and premature graves; while mild forms are met with constantly everywhere. Whatever degree of eminence our brain-workers may hope to attain under any form of stimulation, before their lives shall be prematurely ended, all may rest assured that by obeying the laws of life and building up a healthy body they will, in the long run——the “run” made longer thereby——do more and better work without than with artificial aid. The stimulus of good health is far better than that derived from any stimulating drink. The most brilliant productions of the brain, under stimulation, may, strictly speaking, be called _premature births_. Professor Proctor, in the paper before alluded to, further says: “Notwithstanding the adoption of theine-containing beverages by mankind at large, we can not hesitate to commend that robust habit which discards all dependence on adventitious food, even on so mild a stimulus as that of the tea-cup, and preserves through life the fresh integrity of full nervous susceptibility. And probably there was never a time when there were so many persons as now who are disposed, by conviction and by a desire for a stalwart physical independence, to refuse to fix any habit that holds the nervous system.”