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AIR.
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encountering a draught in a warm room. This caused me to immediately conclude that the supposed effects of draughts existed in the imagination only, and for many years I have made a practice of sleeping with one of these much-libeled draughts, blowing directly upon me, for then, I can breathe air rich in oxygen and pure in quality. I am unquestionably stronger and healthier because of this practice, and never have known a single occasion when it has produced any ill effects, though I have actually felt its wonderful health-giving influence on innumerable instances.

Now let me state clearly my conclusions:

Cold air, whether a draught or otherwise, never has in a single instance produced any ill effects, unless preceded by very serious suffering because of severe cold; and even in this case, no possible harm can result unless the individual is not accustomed to cold air, or part of his body has actually been frozen by the extreme cold.

You may ask, why does cold air sometimes produce colds?