Grumpy Old Geeks Topics Sighing and breathing Topic Sighing and breathing 2 mentions in 1 episode The hosts discuss research describing sighing as a way to help keep lungs inflated. Mentions 303: Sigh Dec 6, 2018 1:41 Scientists have now pinpointed the region in the brain that transforms normal breathing into a life-giving sigh. 1:59 you do this about 12 times an hour