![]() ScienceAlert described this neural system as a “sigh” button in the human body. Since a sigh is essentially an extra breath, it helps to preserve lung function. One button programs regular breaths, another sighs, and the others could be for yawns, sniffs, coughs, and maybe even laughs and cries,” said one of the researchers, Mark Krasnow, from the Stanford University School of Medicine. Each functions like a button that turns on a different type of breath. “It’s made up of small numbers of different kinds of neurons. This breathing center controls the type of breath we take too. “Sighing appears to be regulated by the fewest numbers of neurons we have seen linked to fundamental human behavior,” said Jack Feldman, a neurobiologist at University College Los Angeles and one of the authors of the study. The researchers traced the root of sighs back to the nerve cells in the brain’s stem region, which are responsible for regulating our sleep, heart rate, and breathing. There’s also some value to be found in it we sigh not only as the direct climax of emotions, but also because the physical body sees it as an involuntary action that aids lung function.Ī sigh can be a “ fundamental life-sustaining reflex,” according to a 2016 study published in Nature. The sigh is an utterance rich in meaning. Maybe a sigh at the promise of a long weekend. Other times, the sigh abandons all letters, and exists simply as breath exhaled loudly and quickly. ![]() Some might sigh at the prospect of 50 open tabs sitting in front of them. The most versatile and intuitive among them is the sigh: it is vocal every now and then, conveying inexplicable fatigue.
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