3722. Squinting.—Squinting frequently arises from the unequal strength of the eyes, the weaker eye being turned away from the object, to avoid the fatigue of exertion. Cases of squinting of long standing have often been cured by covering the stronger eye, and thereby compelling the weaker one to exertion.
3723. It is often a question amongst people who are unacquainted with the anatomy and physiology of man, whether lying with his head exalted, or even with the body, is most wholesome. Most, consulting their own ease on this point, argue in favor of that which they prefer.
3724. Now, although many delight in bolstering up their heads at night and sleep soundly without injury, yet we declare it to be a dangerous habit. The vessels through which blood passes from the heart to the head, are always lessened in the cavities when the head is resting in bed higher than the body, therefore, in all diseases attended with fever, the head should be pretty near on a level with the body; and people ought to accustom themselves to sleep thus to avoid danger.
3725. Dyeing the Hair.—It may be stated once for all that this practice is decidedly injurious. It may fail altogether in producing the desired result; it is never unattended by a certain amount of unpleasant circumstances, and frequently with evil results.
3726. In the first place, the alteration of the abnormal color, so far as the general aspect of the face is concerned, has an effect the very reverse of that which was intended. Every constituent part of man tends to make the human machine one harmonious whole. The figure, the stature, the skin, the hair, the gait, &c.