Accustom yourself to the use of sponging with cold water every morning on first getting out of bed. It should be followed with a good deal of rubbing with a wet towel. It has considerable effect in giving tone to the skin, and maintaining a proper action in it, and thus proves a safeguard to the injurious influence of cold and sudden changes of temperature. Sir Astley Cooper said: "The methods by which I have preserved my own health are - temperance, early rising, and sponging the body every morning with cold water, immediately after getting out of bed; a practice which I have adopted for thirty years without ever eatching cold."