Senin, 07 Maret 2016

Aaaaaaah, Really? You Would Die If You Didn't Sigh

People actually sigh once every five minutes, researchers found. But these audible exhalations don't necessarily signal tiredness or exasperation. Rather, physiological sighs are vital to keeping the lungs functioning properly.

from LiveScience.com http://ift.tt/1M2JeGg
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