After breathing a deep sigh, I feel better -- don't you? It's relaxing. And it turns out there's a good reason why we feel relief after big breaths. It comes down to a special fluid inside our lungs.

Add Yahoo as a preferred source to see more of our stories on Google. Our lungs expand when we inhale and contract when we exhale. Sighing can ease lung function, with deep breathing playing a crucial ...

Julian is a contributor and former staff writer at CNET. He's covered a range of topics, such as tech, crypto travel, sports and commerce. His past work has appeared at print and online publications, ...

The human body works in complex ways—sometimes, certain motions are so small that it’s easy to miss how they might cause discomfort in the body. In this way, the surface tissues in our lungs actually ...

The guy in line ahead of me at the rental car counter was freaking out. Not only did they not have the car he reserved, they apparently didn’t have any cars available. (Luckily, I was renting an SUV.) ...

"You must remember this: a kiss is just a kiss, a sigh is just a sigh." Contrary to the words immortalized by the piano singer in "Casablanca," a sigh is far more than a sigh. Heaving an unconscious ...