Ever wonder why homo sapiens "sigh?"
Well according to my HPH400 Physio class, the reason is because it increases the turnover rate for the surfactant in our lungs!
Surfactant is a compound found in everyone's lungs that lower it's surface tension. It basically helps keep our lungs from collapsing. And like all things in life, when it is used, it must be replaced. Thus the role of "sighing!"
So the next time you feel a little down in the dumps...go ahead and sigh...I promise it's good for you!
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