Hygienic Notes
(Page 4 of 10)

General precautions against taking cold are almost self-evident in this light. There is ordinarily little if any danger to be apprehended from wet clothes, so long as exercise is kept up; for the "glow" about compensates for the extra cooling by evaporation. Nor is a complete drenching more likely to be injurious than wetting of one part. But never sit still wet, and in changing rub the body dry. There is a general tendency, springing from fatigue, indolence, or indifference, to neglect damp feet,—that is to say, to dry them by the fire; but this process is tedious and uncertain. I would say especially, "Off with muddy boots and sodden socks at once:" dry stockings and slippers after a hunt may make just the difference of your being able to go out again, or never. Take care never to check perspiration: during this process the body is in a somewhat critical condition, and the sudden arrest of the function may result disastrously, even fatally. One part of the business of perspiration is to equalize bodily temperature, and it must not be interfered with. The secret of much that is said about bathing when heated lies here. A person overheated, panting it may be, with throbbing temples and a dry skin, is in danger partly because the natural cooling by evaporation from the skin is denied; and this condition is sometimes not far from a "sunstroke." Under these circumstances, a person of fairly good constitution may plunge into the water with impunity, even with benefit. But, if the body be already cooling by sweating, rapid abstraction of heat from the surface may cause internal congestion, never unattended with danger.

Drinking ice-water offers a somewhat parallel case; even on stopping to drink at the brook, when flushed with heat, it is well to bathe the face and hands first, and to taste the water before a full draught. It is a well-known excellent rule, not to bathe immediately after a full meal; because during digestion the organs concerned are comparatively engorged and any sudden disturbance of the circulation may be disastrous.

The imperative necessity of resisting drowsiness under extreme cold requires no comment.

In walking under a hot sun, the head may be sensibly protected by green leaves or grass in the hat; they may be advantageously moistened, but not enough to drip about the ears. Under such circumstances the slightest giddiness, dimness of sight, or confusion of ideas, should be taken as a warning of possible sunstroke, instantly demanding rest, and shelter if practicable.