Everyone has an intuitive understanding that we have to have oxygen to live, and most people have experienced an undersupply of oxygen at one time or another, if only from holding the breath. What's not always recognized, at

2 BREAtlUNC 97

least from personal experience, is that the momentary discomfort of smothering is a warning of something more serious: that the cells of the brain and spinal cord are acutely sensitive to oxygen deficits, that a severe deprivation of oxygen will cause temporary damage to the tissue in less than a minute, and that neurons totally deprived of oxygen for about five minutes (as in the case of stroke) will die.


dry air. any temperature

moist air, 75 , 80% relative humidity

warm (98.61) wet air

alveolar gaseous pressures

arterial blood gases

venous blood gases


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Easing Your Stress With Yoga

Easing Your Stress With Yoga

Have You Ever Wanted To Achieve A State Of Total Relaxation But Never Believed That Yoga Was For You? Has the stress of daily life made you tense, uptight and too wound up to be able to think clearly? If so, then you are not alone. 40 of Americans feel that their lives are too stressful and over 60 of Americans say that they find themselves in situations where they feel lost at least once a week.

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