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What is a sigh?

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marmaduke | 00:25 Mon 02nd May 2005 | Body & Soul
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What is a sigh?
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Avatar Image katejess44

It is a long deep audible breath expressing sadness, weariness, longing, relief etc.

00:38 Mon 02nd May 2005
Avatar Image marmaduke
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Yes indeed. But why does it happen involuntarily?
12:48 Mon 02nd May 2005
Avatar Image Clanad

It's been pretty well documented by researchers that deep inspirations, the technical phrase for sighs, play a significant role in helping the mechanical function of healthy lungs. These seemingly "spontaneous" deep breaths often help re-open parts of the lung, especially very small airways, or alveoli, which are prone to collapse. Thus sighs help keep the lungs inflated making them more efficient and possibly also improving the exchange of gases.

Check here for full article...

http://www.news-medical.net/?id=4305

 



 

17:22 Mon 02nd May 2005

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