Kitap 1
2
He can tell that his body is sound, if his morning urine is whitish, later reddish; the former indicates that digestion is going on, the latter that digestion is complete. On waking one should lie still for a while, then, except in winter time, bathe the face freely with cold water; when the days are long the siesta should be taken before the midday meal, when short, after it. In winter, it is best to rest in bed the whole night long; if there must be study by lamp-light, it should not be immediately after taking food, but after digestion. He who has been engaged in the day, whether in domestic or on public affairs, ought to keep some portion of the day for the care of the body. The primary care in this respect is exercise, which should always precede the taking of food; the exercise should be ampler in the case of one who has laboured less and digested less well.
