De Medicina

15 Rocking also is very suitable for chronic maladies which are already abating; it is also of service both for those who are now entirely free from fever, but cannot as yet themselves take exercise, and also for those in whom persist sluggish remnants of maladies, not otherwise to be got rid of. Asclepiades has stated that use is to be made of rocking even for dispersal of a recent and severe fever, especially an ardent fever. But that gives rise to danger; an attack of that sort is better sustained by keeping quiet. If anyone, however, wants to give it a trial, let him try it when the tongue is not furred, when there is no swelling, no induration, no pain, either in the viscera or head or about the heart. And on the whole a body in pain should never be rocked, whether the pain be general or local, except, however, when sinews alone are in

pain, and never during the rise of a fever, but only during its remission. But there are many sorts of rocking, and they are to be regulated both by the patient's strength and by his resources, lest either a weak patient undergo overmuch depletion, or a poor man come short. The gentlest rocking is that on board ship either in harbour or in a river, more severe is that aboard ship on the high seas, or in a litter, even severer still in a carriage: but each of these can either be intensified or mitigated. Failing any of the above, the bed should be so slung as to be swayed; if not even that, at any rate a rocker should be put under its foot so that the bed may be moved from side to side by hand.

And this sort of exercise of the lighter kinds suits the infirm, the stronger kinds again those who have already become free from fever for several days, or those who, whilst feeling the commencement of grave disorders, as yet are free from fever (which happens in the case both of phthisis and of stomach disease, and of dropsy, also, at times, of jaundice), or when certain diseases such as epilepsy and madness persist without fever, for however long. In which affections also those kinds of exercises are necessary, which we have included in the passage where we prescribed what healthy, yet not strong, men should carry out.

16 Now Abstinence is of two kinds, in one of which the patient takes nothing at all, in the other only what he must. The beginnings of diseases require at first hunger and thirst, the actual diseases then moderation, so that nothing but what is expedient, and not too much of that, may be consumed; for it is not at all proper to have surfeit at once after a fast.

But if this be not good even in healthy bodies, when some necessity has imposed fasting, how much worse it is in a sick body! To a sufferer nothing is more advantageous than a timely abstinence. Among us intemperate men with regard to their food themselves . . . the times are left to the doctors; again others make a present of the times to their medical men, but reserve to themselves as to quantity. They think that they are generous, when they leave them to decide as to all else, and keep free as to the kind of food; as if it were a question of what may be yielded to the doctor, not what may be good for the patient, who suffers grievous harm, as often as he transgresses in what he consumes, whether as to the time of the meal, its quantity or its quality.