It also warms and moistens the air in cold weather.

The habit of breathing through the mouth often gives rise to serious disease of the throat and lungs.
~12.

Effects of Alcohol and Tobacco upon the Lungs.~--Both alcohol and tobacco produce disease of the breathing organs.

Smoking injures the throat and sometimes causes loss of smell.

Serious and even fatal diseases of the lungs are often caused by alcohol.
~13.~ Many people suppose that the use of alcohol will save a man from consumption.