Sighing goes beyond expressing frustration or boredom—it's a vital physiological process that supports your well-being.
Read also: What exactly is a sigh?
Research from American scientists shows sighing is a crucial reflex that prevents the collapse of alveoli, the tiny air sacs in your lungs essential for oxygen exchange and waste removal. Frequent shallow breathing can deflate these sacs, but a deep sigh fully reinflates them.
Studies from the University of Leuven reveal that sighing acts as a reset button for breathing, adapting to constantly changing oxygen needs influenced by factors like rushing to catch the bus.
Under stress, your body releases hormones for fight-or-flight, causing rapid, shallow breaths. Sighing more in these moments restores deeper breathing, calming your nervous system effectively.
In frustrating situations—like missing the train twice—sighing releases emotional tension, easing unease and restoring mental clarity.
On average, we sigh 12 times an hour.
