[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article-detail":3},{"lang":4,"article":5,"alternate":19,"related":20,"latest":29},"en",{"id":6,"slug":7,"title":8,"content":9,"summary":10,"thumbnail":11,"metaDescription":12,"metaKeywords":13,"created":14,"modified":14,"author":15,"authorEn":15,"categoryId":16,"commentCount":17,"thumbnailToContent":18},12732,"gut-brain-happy-hormone-tzwk","Your Gut Makes Most of Your 'Happy Hormone'","\u003Cp style=\"margin:0 0 18px;\">Some people are born \"big-hearted\": nothing rattles them, they fall asleep the second their head hits the pillow. Others get anxious over a tiny thing and lie awake all night.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">The difference may not be personality. It may be the intestine.\u003C\u002Fp>\n\u003Ch2 style=\"color:#111;font-size:21px;line-height:1.4;margin:28px 0 12px;\">\u003Cstrong>70–90% of Your Serotonin Is Built by Gut Microbes\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp style=\"margin:0 0 18px;\">Serotonin — 5-hydroxytryptamine — is the key neurotransmitter for emotional stability and an optimistic mood. It also touches appetite, sleep, and memory. When it runs low, people slide into depression and listlessness.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">The brain is usually cast as the boss of mood. But in fact, \u003Cstrong>roughly 70–90% of serotonin is synthesized with the participation of gut microbes\u003C\u002Fstrong>. The \"mood switch\" neurotransmitter — if it's missing, depression follows.\u003C\u002Fp>\n\u003Ch2 style=\"color:#111;font-size:21px;line-height:1.4;margin:28px 0 12px;\">\u003Cstrong>The \"Emotional Hotline\": the Gut-Brain Axis\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp style=\"margin:0 0 18px;\">Between the brain and the gut runs a dedicated emotional hotline, medically called the \u003Cstrong>gut-brain axis\u003C\u002Fstrong>. It works through the \u003Cstrong>vagus nerve, the bloodstream, and the hypothalamic-pituitary-adrenal (HPA) axis\u003C\u002Fstrong>, controlling gut motility, mood, and cognition in both directions.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">Getting diarrhea the moment you're nervous, feeling nauseous when anxious, having your appetite blow open when happy — that's the gut-brain axis pulling the strings.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cimg src=\"\u002Fattachment\u002F20261006\u002Fa6a647e2035a4a72a9658bb527f529b9.webp\" alt=\"img_03_src.webp\">\u003C\u002Fp>\n\u003Ch2 style=\"color:#111;font-size:21px;line-height:1.4;margin:28px 0 12px;\">\u003Cstrong>The Gut Is the \"Second Brain\"\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp style=\"margin:0 0 18px;\">The GI tract is not just a digestive organ; it is also an emotional organ — the \"second brain.\" In past studies, \u003Cstrong>49.3% of patients with functional dyspepsia had comorbid psychological disorders\u003C\u002Fstrong>, and symptom severity tracked with the severity of the mental condition.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">In traditional Chinese medicine's view, blocked emotions disrupt the flow of \u003Ci>qi\u003C\u002Fi> — the vital energy — leaving blood and qi stagnant in the stomach, which impairs appetite and brings acid reflux and bloating.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cimg src=\"\u002Fattachment\u002F20261006\u002F10c37a758ac5469591cbdadb99356953.webp\" alt=\"img_01_src.webp\">\u003C\u002Fp>\n\u003Ch2 style=\"color:#111;font-size:21px;line-height:1.4;margin:28px 0 12px;\">\u003Cstrong>Gut Microbes Run the Mood, Too\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp style=\"margin:0 0 18px;\">A huge microbial community lives in the gut. It helps digest food — and it shapes immunity and metabolism.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">One research team's 20-plus years of work found that \u003Cstrong>healthy people have higher gut microbial diversity than sick people — and long-lived elders score significantly higher than generally healthy older adults\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">Another team reviewed \u003Cstrong>21 studies covering 1,503 participants\u003C\u002Fstrong> — healthy people plus chronic-disease groups at higher anxiety risk, like irritable bowel syndrome and type 2 diabetes. The result: \u003Cstrong>microbiome-targeted interventions relieved anxiety symptoms in 86% of cases\u003C\u002Fstrong>. The gut microbiome regulates brain function through the gut-brain axis.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">Even more striking: \u003Cstrong>non-probiotic interventions — changing the diet to reshape gut microbes — worked better for mood than probiotic supplements\u003C\u002Fstrong>. Compared with swallowing probiotic pills, eating well and restructuring your diet may be the better \"emotional prescription.\"\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cimg src=\"\u002Fattachment\u002F20261006\u002F89ce86f9eb7b4574b0b007cd5fd76c63.webp\" alt=\"img_04_src.webp\">\u003C\u002Fp>\n\u003Ch2 style=\"color:#111;font-size:21px;line-height:1.4;margin:28px 0 12px;\">\u003Cstrong>Six Habits That Feed the Gut — and Let It Carry Your Mood\u003C\u002Fstrong>\u003C\u002Fh2>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cstrong>1. A custom fiber meal.\u003C\u002Fstrong> Dietary fiber is the gut microbiome's \"food ration.\" Healthy adults need \u003Cstrong>25–30 g of fiber a day — about 500 g vegetables + 200 g fruit + 50 g whole grains\u003C\u002Fstrong> — with dark-colored vegetables preferred. Resistant starch (raw banana, chilled boiled potato) and prebiotics (kudzu powder, inulin) feed beneficial bacteria. Diabetics can add konjac and oats to stabilize blood sugar. People with liver disease, chronic diarrhea, the elderly, and children should avoid high-fiber diets; skip high-sugar, high-fat, high-salt food, quit smoking and alcohol.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cstrong>2. Move to activate.\u003C\u002Fstrong> Exercise promotes gut motility. Aim for \u003Cstrong>150 minutes a week of moderate exercise\u003C\u002Fstrong> — running, brisk walking — and cut sitting time: \u003Cstrong>stand up and move for 5 minutes after every hour seated\u003C\u002Fstrong>.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cstrong>3. Keep a regular schedule.\u003C\u002Fstrong> Gut motility and microbes have their own clock, formed through long cohabitation. Irregular hours and late nights cause dysbiosis — the most obvious signs are bad breath and constipation in late-night people. \u003Cstrong>Sleep before 11 p.m., no food in the last hour before bed, meals at consistent times within 30 minutes.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cstrong>4. Don't let negative emotions pile up.\u003C\u002Fstrong> Chronic stress, anxiety, and depression disrupt gut function — and the disturbed gut then worsens cognition and sleep, feeding the mood problem back. Learn to relieve pressure and try sitting meditation.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cstrong>5. Get sunlight.\u003C\u002Fstrong> Sun exposure raises serotonin synthesis — an immediate mood lift. A \u003Cstrong>Monash University\u003C\u002Fstrong> study found that more outdoor time and adequate sun exposure improve overall health, mood, and sleep, and significantly lower depression risk.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cstrong>6. Avoid misusing antibiotics.\u003C\u002Fstrong> Antibiotics fight infection but also \"kill\" gut bacteria — friend and foe alike. Take them only as prescribed.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Cimg src=\"\u002Fattachment\u002F20261006\u002F2b18f5b49be844b4b3d6f150e679c71b.webp\" alt=\"img_02_src.webp\">\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">The saying goes: pull the strongest bow, use the longest arrow. For gut and mood alike, the winning move is keeping serotonin steady and feeding the microbes — and the gut will carry your emotions for you.\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">Want to see the microbes that help build your happy hormone? \u003Cstrong>WWAI\u003C\u002Fstrong> is an AI-powered biology encyclopedia with an online microscope, including an \u003Cstrong>E. coli specimen where Gram-negative rod-shaped bacteria are clearly visible under the microscope\u003C\u002Fstrong>. Search \"WWAI\" in your app store and download it today.\u003C\u002Fp>\n\u003Cdiv class=\"dp-template-card\" style=\"border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.1);margin:10px 0;max-width:100%;overflow:hidden;width:100%;\">\n \u003Ca style=\"display:block;text-decoration:none;\" href=\"https:\u002F\u002Fyun-hub.chat\u002Flink\u002F?app=wwai&clickid=stellarx&dplink=specimenid%3D1046\" target=\"_blank\">\u003Cimg class=\"image_resized\" style=\"display:block;height:auto;max-width:100%;width:100%;\" src=\"\u002Fattachment\u002F20260824\u002F5ba5dd3c38404fe785f43c44423830de.png\" alt=\"5ba5dd3c38404fe785f43c44423830de\">\n  \u003Cbutton style=\"align-items:center;background-color:#1f983e;border-radius:0 0 25px 25px;border-style:none;color:#ffffff;cursor:pointer;display:flex;font-family:Times New Roman;font-size:19px;height:40px;justify-content:center;padding:0;width:100%;\">EXPLORE NOW\u003C\u002Fbutton>\u003C\u002Fa>\n\u003C\u002Fdiv>\n\u003Cp style=\"color:#111;margin:28px 0 8px;\">\u003Cstrong>Related reading\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 20px;\">\u003Ca style=\"color:#111;text-decoration:none;\" href=\"https:\u002F\u002Fstellarx.tech\u002Farticle\u002Fibs-gut-brain-axis-leaving-home-tqzb\">\u003Cimg class=\"image_resized\" style=\"border-radius:8px;display:block;height:auto;margin-bottom:6px;max-width:520px;width:100%;\" src=\"https:\u002F\u002Fcdn.banyunjuhe.com\u002Fattachment\u002F20261003\u002F93217d945a5d44ffa7ee70454ab5f758.webp\" alt=\"Why You Poop When Leaving Home: Gut-Brain Axis\">\u003C\u002Fa>\u003Cbr>\u003Ca style=\"color:#0b6cb0;text-decoration:none;\" href=\"https:\u002F\u002Fstellarx.tech\u002Farticle\u002Fibs-gut-brain-axis-leaving-home-tqzb\">\u003Cstrong>Why You Poop When Leaving Home: Gut-Brain Axis\u003C\u002Fstrong>\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 20px;\">\u003Ca style=\"color:#111;text-decoration:none;\" href=\"https:\u002F\u002Fstellarx.tech\u002Farticle\u002Fthyroid-nodule-biology\">\u003Cimg class=\"image_resized\" style=\"border-radius:8px;display:block;height:auto;margin-bottom:6px;max-width:520px;width:100%;\" src=\"https:\u002F\u002Fcdn.banyunjuhe.com\u002Fattachment\u002F20260926\u002Fc692aaf26f724affae2a2016cb40a159.png\" alt=\"A 1 cm Thyroid Nodule Turned Out to Be Cancer While a Bigger…\">\u003C\u002Fa>\u003Cbr>\u003Ca style=\"color:#0b6cb0;text-decoration:none;\" href=\"https:\u002F\u002Fstellarx.tech\u002Farticle\u002Fthyroid-nodule-biology\">\u003Cstrong>A 1 cm Thyroid Nodule Turned Out to Be Cancer While a Bigger…\u003C\u002Fstrong>\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 20px;\">\u003Ca style=\"color:#111;text-decoration:none;\" href=\"https:\u002F\u002Fstellarx.tech\u002Farticle\u002Fmoth-larvae-chewing-cars\">\u003Cimg class=\"image_resized\" style=\"border-radius:8px;display:block;height:auto;margin-bottom:6px;max-width:520px;width:100%;\" src=\"https:\u002F\u002Fcdn.banyunjuhe.com\u002Fattachment\u002F20260926\u002F554c67bfe7fe4467985e06b238d7e818.png\" alt=\"Why Are Mysterious Round Holes Appearing on Parked Cars? The…\">\u003C\u002Fa>\u003Cbr>\u003Ca style=\"color:#0b6cb0;text-decoration:none;\" href=\"https:\u002F\u002Fstellarx.tech\u002Farticle\u002Fmoth-larvae-chewing-cars\">\u003Cstrong>Why Are Mysterious Round Holes Appearing on Parked Cars? The…\u003C\u002Fstrong>\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp style=\"color:#8a8a8a;font-size:13px;margin:0 0 10px;\">\u003Ci>References:\u003C\u002Fi>\u003C\u002Fp>\n\u003Cp style=\"margin:0 0 18px;\">\u003Ci>Locally adapted for this site's science-communication positioning. Serotonin synthesis ratio, gut-brain axis pathways, comorbidity rate, microbiome-intervention data and the Monash University sunlight study all follow the source article's reporting; all illustrations are AI-generated except the intestine model and vegetable photos from the source material.\u003C\u002Fi>\u003C\u002Fp>","","\u002Fattachment\u002F20261006\u002Ffd7b17c246cd4755a4fc80ef5b8a60ea.webp","About 70-90% of serotonin, your 'happy hormone', is made by gut microbes. 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