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      • But in the journal Cell Reports Medicine, scientists say sighing, which involves exhaling deeply, can reduce stress even more than inhaling deeply. That's because all deep breathing activates part of the nervous system in charge of how the body rests. Heart rate slows, blood pressure drops, and the mind begins to relax.
      www.npr.org/2023/03/13/1163028315/scientists-say-sighing-which-involves-exhaling-deeply-is-a-good-stress-reducer
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  2. Jan 14, 2020 · Because it’s such a big breath, a sigh can work to reinflate most of your alveoli. What about sighing more than normal though? Excessive sighing can indicate an underlying problem.

  3. Aug 15, 2022 · Sighing also shares a rewarding relationship with relief. Science so far has agreed on the premise of “sigh of relief”; there is a sense of catharsis, of repose, that comes with a sigh too. An experiment on rats found their sighing increased when they stop receiving electric shocks.

  4. Jan 16, 2023 · It can happen due to an emotional response like stress or relief, but you can also sigh without even noticing it. In fact, on average, people produce about 12 “spontaneous sighs” within an hour. Usually, a sigh involves breathing in a second inhale before letting the exhale (sigh) out.

  5. May 1, 2024 · Sighing typically involves a long inhale and may give the lungs a necessary air boost and boost the oxygen levels of the blood. This means that sighing every now and then could help keep the...

  6. Sighing is not contagious in the same way as yawning, which suggests that its primary function is to do with respiration rather than communication of any state of mind. But it's also associated with certain moods, and laboratory rats have been shown to sigh with relief.

  7. Mar 3, 2024 · esearch shows that sighs reduce muscle tension and provide a sense of relief, but does sighing have a psychological effect and ability to ease anxiety?

  8. Sighing activates the parasympathetic nervous system (PNS), which is responsible for the “rest and digest” response, promoting relaxation and lowering heart rate, blood pressure, and stress hormones. Sighing also increases vagal tone, which essentially reflects the activity level of the PNS.

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