What	Who	When	Why	How	Where
Main Menu	Several cups of water are lost daily through breathing because the lungs require humid air to do their work. In the dry season when drier air prevails outside and air conditioning dry out the air inside, even more water is lost. It is estimated that on an average day in the dry season, 3-4 cups of water are lost through breathing. On a very dry season day as much as 2-3 more cups of water may be lost in this way. The body has to moisturize the air before it reaches the lungs and does so through the mucous membranes lining the nasal passages and the bronchi. As available fluid decreases, the mucous lining becomes drier. This in turn irritates the lungs, causing them to become more reactive to dust, mold particles, cigarette smoke and other irritants, and less resistant to viruses and bacteria. The result: dry cough and bronchitis.
WHEN: Page Four of Seven pages	© Copyright 2003 by Barry Doolittle , all rights reserved. http://www.oocities.org/cbt_pro/