William A. Hammond

Biographical details

Portrait of William A. Hammond William A. Hammond,  Sleep and Its Derangements

“ A gentleman recently under my care for a paralytic affection, informed me that he could at any time render himself sleepy by looking for a few minutes at a bright light, so as to fatigue the eyes, or by paying particular attention to the noises in the street, so as to weary the sense of hearing. It is well known that sleep may be induced by gentle frictions of various parts of the body, and doubtless the other senses are capable of being so exhausted, if I may use the expression, as to diminish the power of the attention, and thus lessen the demand for blood in the brain. ”
Source: Gutenberg

Portrait of William A. Hammond William A. Hammond,  Fasting Girls: Their Physiology and Pathology

“ Looking at a bear, for instance, for the first time, and with no knowledge of its habits and capacities we would not be apt to believe that the animal could go into retirement at the beginning of winter and remain till spring in a condition of semi-existence and without food. But experience teaches us that the bear when it begins to hibernate is fat; that during hibernation it is in a perfectly quiescent state; that when it emerges into active life again it is emaciated, and that during the whole period of retirement it has taken nothing into its stomach. ”
Source: Gutenberg

Portrait of William A. Hammond William A. Hammond,  Sleep and Its Derangements

“ A man athirst has a strong desire to drink; but for some particular reason he determines not to gratify his desire. A judge from a regard to justice and to the duty of his office dooms a criminal to die; while, from humanity or particular affection, he desires that he should live. A man for health may take a nauseous draught, for which he has no desire, but a great aversion. Desire, therefore, even when its object is some action of our own, is only an incitement to will; but it is not volition. The determination of the mind may be not to do what we desire to do. ”
Source: Gutenberg

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