Everyone has had that moment: You finally get to the bathroom after holding it in, and the sense of relief is immediate. Maybe even a little satisfying.
Pooping is a vital process that keeps our digestive systems working, yet it’s also something most people avoid talking about — especially when it comes to how it feels. It’s not exactly dinner table conversation.
Normal bowel frequency varies widely. For most people, anywhere from three times a day to three times a week is considered normal, as long as stools are comfortable to pass without straining. Healthy stool is typically somewhat soft, but formed like a sausage with cracks or like a snake in shape, and brown in color.
Bowel movements happen via a coordinated process involving the digestive system, nervous system, and pelvic floor muscles. The colon acts as a muscular tube that squeezes and moves stool forward until it reaches the rectum. When the rectum fills, it stretches, signaling to the brain that it’s time to go. In response, rectal muscles contract, sphincter muscles relax, and stool is expelled. This process helps the body eliminate waste, excess bacteria, bile acids, and water, supporting normal gut function.
These same systems also explain why pooping often feels relieving — and even pleasurable — for many people. Here’s a look at four reasons why pooping feels good.
1. It Stimulates the Vagus Nerve
If you feel sensations like calm and relaxation wash over you after going to the bathroom, thank your vagus nerve.
The vagus nerve extends from the brain stem in branches, one of which travels to reach the digestive tract, and it plays a key role in taste, mood, and muscle sensations, among other functions.
It also helps regulate relaxation in the body, guiding heart rate, blood pressure, and other automatic functions, according to Anish Sheth, MD, a gastroenterologist at Penn Medicine and Princeton Medicine Physicians in Plainsboro, New Jersey, and the coauthor of the book What’s Your Poo Telling You?
These nerves are activated after a bowel movement, triggering feel-good sensations Dr. Sheth describes as “poophoria” in his book. “We feel a slight drop in blood pressure, in heart rate, and other sensory effects that create a subtle sense of relaxation and well-being,” he says.
But don’t overdo it, says Caroline Soyka, DO, a gastroenterologist at Gastro Health in Jupiter, Florida. “When [the vagus nerve is] overstimulated, such as from straining too hard, holding your breath, or bearing down for too long, it can cause dizziness or even fainting.” And that definitely isn’t ideal when you’re sitting on the toilet.
2. It Activates the Rest of the Parasympathetic Nervous System, Too
Beyond the vagus nerve, pooping engages the broader parasympathetic nervous system (PSNS), which helps regulate many of our involuntary bodily functions.
Our autonomic nervous system, the system controlling things like breathing, heart rate, and digestion, has two main branches: the sympathetic and the parasympathetic.
The sympathetic nervous system acts like a gas pedal in a car, triggering the fight-or-flight response and putting the body on high alert when it senses danger.
On the flip side, the parasympathetic nervous system acts like a brake, calming the body and returning it to a “rest and digest” state, Dr. Soyka says.
It’s usually switched on when we have a bowel movement, relaxing the muscles that help us control urination or defecation. It even enables swift digestion, directing energy to organs that help digest food.
“Stress puts the body in fight-or-flight mode, which slows digestion. Pooping requires the opposite state with ‘rest and digest.’ When you finally have a bowel movement, your nervous system shifts out of stress mode and into recovery mode, which feels very relieving,” she says.
But in the case of some conditions, such as irritable bowel syndrome (IBS), bowel movements are connected with an activated stress response.
Paired with the vagus nerve, which is a major part of the PSNS, these nerve activations are a key reason pooping can feel not just necessary, but genuinely soothing.
3. It’s Stress-Relieving — Mentally and Physically
Before a bowel movement, stool can accumulate in the rectum, creating pressure, bloating, gas, and sometimes abdominal discomfort. Clenching to hold it in or straining to push bowels out can create tension — and some people feel stressed about bathroom difficulties, Sheth says. But once you’re finally able to go, all of that built-up tension is released, creating a noticeable sense of relief, Soyka says. “When the rectum empties, the pressure from stretching goes away. Your brain interprets this drop in pressure as relief,” she says.
Sheth compares it to holding your urine: “If you’ve ever had to hold your urine for a long time because you haven’t been able to go to the bathroom and then you release, you know that feeling.”
For people with sensitive digestive systems, like those with irritable bowel syndrome (IBS), this relief can be even more heightened, reducing bloating, gas, and cramping.
4. It Provides a Feeling of Satisfaction or Completeness
A bowel movement is a carefully orchestrated process, requiring smooth coordination across the nervous system, colon, rectum, anal sphincters, and pelvic floor muscles. When everything aligns perfectly and the bowels are totally emptied, it can trigger a powerful sense of satisfaction, Sheth says.
It’s a feeling of a problem solved, he says. “When we have a distension of the rectum and we’re able to collapse it, and evacuate it completely, it definitely creates a sort of sublime relaxation,” he says.
You feel lighter in your step, even if only temporarily, Sheth says. But not literally: Research suggests the average person produces about ¼ pound, and most of it is water.
The Takeaway
Pooping is a complex, coordinated process involving the digestive system, nervous system, and pelvic floor muscles that helps the body eliminate waste.
The act of pooping can trigger multiple brain-body pathways, including the vagus nerve and other parts of the parasympathetic nervous system, which make it physically and mentally satisfying, calming, and stress-relieving.
Healthy bowel movements can happen as often as three times a day or as infrequently as three times a week; stools should be comfortable to pass without straining.
EDITORIAL SOURCES
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Yuying Luo, MD, is an assistant professor of medicine at Mount Sinai West and Morningside in New York City. She aims to deliver evidence-based, patient-centered, and holistic care for her patients.
Her clinical and research focus includes patients with disorders of gut-brain interaction such as irritable bowel syndrome and functional dyspepsia; patients with lower gastrointestinal motility (constipation) disorders and defecatory and anorectal disorders (such as dyssynergic defecation); and women’s gastrointestinal health.
She graduated from Harvard with a bachelor's degree in molecular and cellular biology and received her MD from the NYU Grossman School of Medicine. She completed her residency in internal medicine at the Icahn School of Medicine at Mount Sinai, where she was also chief resident. She completed her gastroenterology fellowship at Mount Sinai Hospital and was also chief fellow.
Carmen Chai is a Canadian journalist and award-winning health reporter. Her interests include emerging medical research, exercise, nutrition, mental health, and maternal and pediatric health. She has covered global healthcare issues, including outbreaks of the Ebola and Zika viruses, anti-vaccination movements, and chronic diseases like obesity and Alzheimer’s.
Chai was a national health reporter at Global News in Toronto for 5 years, where she won multiple awards, including the Canadian Medical Association award for health reporting. Her work has also appeared in the Toronto Star, Vancouver Province, and the National Post. She received a bachelor’s degree in journalism from Ryerson University in Toronto.
