{"id":115967,"date":"2026-09-18T15:09:19","date_gmt":"2026-09-18T19:09:19","guid":{"rendered":"https:\/\/bgodinspired.com\/?p=115967"},"modified":"2026-09-18T15:09:19","modified_gmt":"2026-09-18T19:09:19","slug":"why-do-we-sigh","status":"publish","type":"post","link":"https:\/\/bgodinspired.com\/index.php\/bible-resources\/bible-and-science\/why-do-we-sigh\/","title":{"rendered":"Why Do We Sigh? Your Lungs Need One Every Five Minutes"},"content":{"rendered":"<div class='booster-block booster-read-block'>\n                <div class=\"twp-read-time\">\n                \t<i class=\"booster-icon twp-clock\"><\/i> <span>Read Time:<\/span>9 Minute, 52 Second                <\/div>\n\n            <\/div><p>You are reading a message, or standing at the sink, or waiting for a kettle, and it happens. A breath comes in, then somehow a second one piles on top of it, and the whole lot leaves you in one long, slow push. You did not decide to do it. Often you do not even notice it happened.<\/p>\n\n<p>So why do we sigh? Most people would say it is a feeling leaking out: tired, fed up, relieved, sad. That is part of it. But the bigger reason is plainer and much stranger. You sigh because your lungs would slowly stop working properly if you did not.<\/p>\n\n<h2>Why do we sigh? The short answer<\/h2>\n\n<p>Deep inside your lungs are hundreds of millions of tiny air sacs called alveoli. They look a little like bunches of grapes. Each one is a thin, soft bubble where oxygen passes into your blood and carbon dioxide passes out.<\/p>\n\n<p>Soft bubbles have a problem. Ordinary quiet breaths are fairly shallow, and over time some of those little sacs start to sag and fold in on themselves. A folded sac cannot swap gases.<\/p>\n\n<p>A sigh is the fix. It pops them back open.<\/p>\n\n<p>Jack Feldman, a breathing researcher at UCLA, described it to his university&#8217;s newsroom in 2016 like this: a sigh &#8220;starts out as a normal breath, but before you exhale, you take a second breath on top of it.&#8221; That extra breath stretches the lungs further than an ordinary breath does and reopens the sacs that had started to close.<\/p>\n\n<p>He put the stakes bluntly, too. If you did not sigh every five minutes or so, he said, the alveoli would slowly collapse, &#8220;causing lung failure.&#8221; That works out to roughly twelve sighs an hour, all day and all night, almost none of which you will ever notice.<\/p>\n\n<div class=\"convertkit-form wp-block-convertkit-form\" style=\"\"><script async data-uid=\"c87e3ed518\" src=\"https:\/\/bgodinspired.kit.com\/c87e3ed518\/index.js\" data-jetpack-boost=\"ignore\" data-no-defer=\"1\" data-no-optimize=\"1\" nowprocket><\/script><\/div>\n\n\n<h2>Where the sigh comes from in your brain<\/h2>\n\n<p>For a long time nobody knew what switched a sigh on. In 2016, Feldman and Mark Krasnow of Stanford published a study in the journal <em>Nature<\/em> that traced it. <a href=\"https:\/\/www.nature.com\/articles\/nature16964\" target=\"_blank\" rel=\"noopener\">Their paper<\/a> found a small group of nerve cells in the brainstem that send out chemical messengers, and those messengers tell the breathing centre next door to turn one normal breath into a sigh.<\/p>\n\n<p>When the researchers blocked those signals, sighing nearly stopped. When they boosted them, sighing shot up.<\/p>\n\n<p>One honest caveat: this work was done in mice. Humans breathe with the same basic machinery, but the exact circuit has not been mapped in a living person in the same way.<\/p>\n\n<p>Doctors have known about the lung side of this for a long time. Some hospital breathing machines have a setting that adds an occasional extra-deep breath, often called a &#8220;sigh&#8221; breath, because lungs kept at one steady, shallow depth tend to lose ground. The machine is copying something your body already does for free.<\/p>\n\n<h2>So why do we sigh when we are sad or stressed?<\/h2>\n\n<p>This is the part everyone actually wants to know. And here is the surprise: nobody fully knows.<\/p>\n\n<p>Feldman said so plainly. &#8220;There is certainly a component of sighing that relates to an emotional state,&#8221; he told UCLA. &#8220;When you are stressed, for example, you sigh more.&#8221; But how the feeling parts of the brain reach down and press the sigh button is, in his words, still a mystery.<\/p>\n\n<p>What we can say is that the sigh seems to work in both directions. Life gets heavy, and you sigh more. And, as a newer study suggests, sighing on purpose may make life feel a little lighter.<\/p>\n\n<h2>The five-minute sighing study, and what it really found<\/h2>\n\n<p>In January 2023 a team at Stanford, led by Melis Yilmaz Balban with David Spiegel and Andrew Huberman, published a study in <em>Cell Reports Medicine<\/em>. They asked 111 people to spend five minutes a day, for a month, on one of four practices. Three were breathing exercises. The fourth was mindfulness meditation.<\/p>\n\n<p>One of the breathing exercises was &#8220;cyclic sighing&#8221;: a sigh done slowly and on purpose, over and over.<\/p>\n\n<p>You will often see this study summed up online as &#8220;sighing beats meditation for anxiety.&#8221; That is not quite what it found, and the real result is more useful.<\/p>\n\n<ul>\n<li><strong>Anxiety went down in every group<\/strong>, including the people who meditated. According to <a href=\"https:\/\/stanmed.stanford.edu\/cyclic-sighing-stress-relief\/\" target=\"_blank\" rel=\"noopener\">Stanford Medicine&#8217;s write-up<\/a>, all four groups reported lower anxiety and a better mood.<\/li>\n<li><strong>Where breathing pulled ahead was in good feelings.<\/strong> The breathing groups reported bigger rises in positive feelings, things like energy, joy and peacefulness, than the meditation group did.<\/li>\n<li><strong>Cyclic sighing did best of all<\/strong>, and its daily benefit grew the longer people kept at it.<\/li>\n<\/ul>\n\n<p>Even the researchers were careful. Spiegel said they &#8220;may be able to identify certain kinds of anxiety that respond substantially to this simple treatment.&#8221; That is a &#8220;may,&#8221; from a single month-long study. It is a promising start, not a cure.<\/p>\n\n<p>Still, the most striking thing is how small the ask was. Five minutes. No app, no equipment, no cost.<\/p>\n\n<h2>How to do a deliberate sigh<\/h2>\n\n<p>This is the version Stanford described. It is simple enough to do on a bus, in a queue, or lying in bed:<\/p>\n\n<ol>\n<li><strong>Breathe in through your nose.<\/strong> A normal, comfortable breath.<\/li>\n<li><strong>Take a second, smaller breath in on top of it<\/strong>, to fill your lungs the rest of the way. This is the sigh&#8217;s signature move: two breaths stacked.<\/li>\n<li><strong>Let it all out slowly through your mouth.<\/strong> Take longer to breathe out than you took to breathe in.<\/li>\n<li><strong>Repeat for a few minutes.<\/strong> Five, if you can spare them. One or two sighs still count.<\/li>\n<\/ol>\n\n<p>Go gently. If it makes you dizzy, slow down or stop. And if you often feel you cannot get a satisfying breath, or it comes with chest pain or breathlessness that will not pass, that is worth getting checked at a clinic or pharmacy rather than breathing through on your own.<\/p>\n\n<p>If you are not sure how much of your sighing is stress, our free <a href=\"https:\/\/bgodinspired.com\/index.php\/how-anxious-am-i\/\">How Anxious Am I? assessment<\/a> takes a couple of minutes and is completely private. And if you are curious about other things your body does without asking permission, the same kind of story sits behind <a href=\"https:\/\/bgodinspired.com\/index.php\/bible-resources\/bible-and-science\/why-do-we-get-goosebumps\/\">why we get goosebumps<\/a>, and behind <a href=\"https:\/\/bgodinspired.com\/index.php\/health-and-wellness\/why-do-i-talk-to-myself\/\">why we talk to ourselves<\/a>.<\/p>\n\n<h2>The sigh that came before the words<\/h2>\n\n<p>Here is a detail most people walk straight past.<\/p>\n\n<p>One of the oldest written accounts of the life of Jesus tells of a man who could not hear and could barely speak. His friends brought him and begged for help. Before Jesus said anything at all, the account slows down to note two small things. He looked up to heaven. And he sighed.<\/p>\n\n<p>Only then did he speak one word: &#8220;Ephphatha,&#8221; which means &#8220;Be opened.&#8221;<\/p>\n\n<p>The Greek word used for that sigh is <em>stenazo<\/em>, to sigh or groan. Its close cousin turns up later in an early letter describing what happens when a person is too worn down to know how to pray: the Spirit prays for them, it says, &#8220;with groanings which cannot be uttered.&#8221; Sighs too deep for words.<\/p>\n\n<p>Nobody needs to make too much of that. But it is a quietly lovely thing to notice, the week you find yourself sighing at the sink. The sigh your body makes to open up what has closed is the same small sound that ancient writers heard in the deepest kind of prayer. Some days a sigh is all the words you have. It may be that someone is already listening to it.<\/p>\n\n<h2>What to take from all this<\/h2>\n\n<p>You will sigh about twelve times in the next hour. Most of them you will never notice. They are just your lungs quietly reopening what the day has folded shut.<\/p>\n\n<p>But you can also borrow the reflex on purpose. When the day stacks up, stack two breaths, and let them go slowly. It will not fix everything. It is not supposed to. It is just a way of giving your body what it was already asking for.<\/p>\n\n<h2>Questions People Ask About Sighing<\/h2>\n\n<h3>Why do we sigh?<\/h3>\n\n<p>Humans sigh mainly to keep the lungs working. The lungs contain hundreds of millions of tiny air sacs called alveoli, and during ordinary shallow breathing some of them slowly sag and close. A sigh is a normal breath with a second breath taken on top of it before breathing out, which stretches the lungs further and pops those sacs back open. UCLA breathing researcher Jack Feldman has said that without a sigh every five minutes or so, the alveoli would gradually collapse and cause lung failure.<\/p>\n\n<h3>How often do people sigh?<\/h3>\n\n<p>People sigh about once every five minutes, or roughly 12 times an hour, according to researchers at UCLA and Stanford who mapped the brain circuit behind sighing in a 2016 study published in the journal Nature. Most of these sighs happen automatically and go unnoticed. People tend to sigh more often when they are stressed.<\/p>\n\n<h3>Why do I sigh so much when I am stressed or sad?<\/h3>\n\n<p>Stress and strong emotion make people sigh more often, but scientists do not yet know exactly how. The brainstem circuit that triggers a sigh was identified in mice in 2016, yet the pathway linking emotional areas of the brain to that circuit has not been worked out. Frequent sighing during stress is common and usually harmless. Constant breathlessness, chest pain, or a feeling of never getting a full breath is worth checking with a health worker.<\/p>\n\n<h3>What is cyclic sighing and does it work?<\/h3>\n\n<p>Cyclic sighing is a breathing exercise that repeats a deliberate sigh: breathe in through the nose, take a second smaller breath in to fill the lungs, then breathe out slowly through the mouth, for about five minutes. In a 2023 Stanford study of 111 people published in Cell Reports Medicine, anxiety fell in every group, including mindfulness meditation, but the breathing groups gained more in positive feelings, and cyclic sighing showed the largest daily improvement. It is a promising but early finding from a single one-month study.<\/p>\n\n<h3>Did Jesus sigh?<\/h3>\n\n<p>Yes. The Gospel of Mark records that before healing a man who was deaf and had a speech impediment, Jesus looked up to heaven and sighed, then said &#8220;Ephphatha,&#8221; meaning &#8220;Be opened.&#8221; The Greek verb used is stenazo, meaning to sigh or groan. A related word appears in Paul&#8217;s letter to the Romans, which describes the Spirit praying for people &#8220;with groanings which cannot be uttered&#8221; when they do not know what to pray.<\/p>\n\n<h2>Over to You<\/h2>\n\n<p>Here is one to argue about. If a five-minute breathing exercise can lift someone&#8217;s mood about as well as some of the tools we pay good money for, why do you think so few people ever try it? Is it that it seems too simple to work? Tell us what you think, and whether you have ever caught yourself sighing more than usual. We read every reply.<\/p>\n\n<div class=\"convertkit-form wp-block-convertkit-form\" style=\"\"><script async data-uid=\"c87e3ed518\" src=\"https:\/\/bgodinspired.kit.com\/c87e3ed518\/index.js\" data-jetpack-boost=\"ignore\" data-no-defer=\"1\" data-no-optimize=\"1\" nowprocket><\/script><\/div>\n\n\n<h2>If You Want to Pass This On<\/h2>\n\n<p>Take any of these:<\/p>\n\n<ul>\n<li>TIL you sigh about 12 times an hour, and it is not drama. Your lungs need it to reopen tiny air sacs or they slowly fail. https:\/\/bgodinspired.com\/index.php\/bible-resources\/bible-and-science\/why-do-we-sigh\/<\/li>\n<li>A sigh is just two breaths stacked on top of each other, let out slowly. Stanford found five minutes a day of doing it on purpose lifted people&#8217;s mood. Trying it tonight. https:\/\/bgodinspired.com\/index.php\/bible-resources\/bible-and-science\/why-do-we-sigh\/<\/li>\n<li>Before he spoke a single word to a man who could not hear, Jesus looked up and sighed. I never noticed that before. Some days a sigh is the whole prayer. https:\/\/bgodinspired.com\/index.php\/bible-resources\/bible-and-science\/why-do-we-sigh\/<\/li>\n<\/ul>\n        <div class=\"booster-block booster-reactions-block\">\n            <div class=\"twp-reactions-icons\">\n                \n                <div class=\"twp-reacts-wrap\">\n                    <a react-data=\"be-react-1\" post-id=\"115967\" class=\"be-face-icons un-reacted\" href=\"javascript:void(0)\">\n                        <img decoding=\"async\" src=\"https:\/\/bgodinspired.com\/wp-content\/plugins\/booster-extension\/\/assets\/icon\/happy.svg\" alt=\"Happy\" title=\"\">\n                    <\/a>\n                    <div class=\"twp-reaction-title\">\n                        Happy                    <\/div>\n                    <div class=\"twp-count-percent\">\n                                                    <span style=\"display: none;\" class=\"twp-react-count\">0<\/span>\n                        \n                         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Your lungs need a deep sigh about every five minutes to reopen tiny air sacs. Here&#8217;s what science knows, and the part it still can&#8217;t explain.<\/p>\n","protected":false},"author":4,"featured_media":115966,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_wp_convertkit_post_meta":{"form":"-1","landing_page":"0","tag":"0","restrict_content":"0"},"footnotes":""},"categories":[3550,3711],"tags":[],"class_list":["post-115967","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bible-and-science","category-health-and-wellness"],"_links":{"self":[{"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/posts\/115967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/comments?post=115967"}],"version-history":[{"count":1,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/posts\/115967\/revisions"}],"predecessor-version":[{"id":115968,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/posts\/115967\/revisions\/115968"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/media\/115966"}],"wp:attachment":[{"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/media?parent=115967"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/categories?post=115967"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bgodinspired.com\/index.php\/wp-json\/wp\/v2\/tags?post=115967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}