Did you know that we have another brain in our body? This "second brain" is located in our gut, and it plays a major role in our overall health. In this blog post, we will discuss what the second brain is, what it does, and how it affects our overall well-being. We will also explore some of the latest research on this fascinating topic!
It wasn't until my late 30's that I learn we had another brain in our body. This "second brain" is located in our gut and it plays a major role in our overall health. I was fascinated by this concept and wanted to learn more. After doing some research, I discovered that the second brain is made up of nerve cells (neurons) that communicate with each other and with our brains. I was also amazed to learn that the gut has about 500 million neurons which is three times more than neurons in the spinal cord.
What does this second brain do? This "brain in our gut" is responsible for a lot! It helps with digesting food, absorbing nutrients, and eliminating waste. It also regulates our immune system, produces hormones, and controls our mood and emotions. That's right - the second brain can affect our mood, emotions, and the way we think!!
The second brain plays a major role in our digestive system. It helps to control things like appetite, satiety, and digestion. When the second brain is not functioning properly, it can lead to problems like irritable bowel syndrome (IBS), anxiety, and depression.
The second brain is also responsible for producing hormones that help to regulate our mood and emotions. These hormones include serotonin, dopamine, and GABA. Serotonin is a "feel good" hormone that helps to regulate mood, appetite, sleep, and social behavior. Dopamine is a "reward" hormone that helps us feel pleasure and motivation. GABA is a "calming" hormone that helps to reduce anxiety and promote relaxation.
So how does the second brain affect our overall health? When the second brain is not functioning properly, it can lead to physical and mental health problems. For example, IBS is a condition that can be caused by an imbalance in the second brain. IBS can cause symptoms like abdominal pain, bloating, diarrhea, and constipation. Anxiety and depression are also common mental health disorders that have been linked to problems with the second brain.
The good news is that there are ways to support the second brain and improve gut health! Some simple things that you can do to support your gut health include: eating a healthy diet, exercising regularly, getting enough sleep, and managing stress. You can also take probiotics or other supplements to support gut health.
By taking care of our second brain, we can improve our overall physical and mental health!

Does the gut have a brain?
Yes! we do have a second brain in our gut. Scientists and doctors call it the enteric nervous system (ENS) and according to ScienceDirect, it is defined as "the arrangement of neurons and supporting cells throughout the gastrointestinal tract, from the esophagus to the anus". ENS is often referred to as the "second brain" because it is able to function independently of the central nervous system (CNS).
The gut-brain connection is a hot topic of research these days. Scientists have long known that the gastrointestinal tract is richly innervated with nerve cells and that the ENS can function independently from the brain. However, it's only recently that we've begun to understand just how complex the relationship between the gut and the brain really is. The ENS consists of a vast network of neurons that span the length of the GI tract, and it has been shown to play a role in everything from digestion to immunity. In addition, emerging evidence suggests that the ENS may also influence mood and behavior. For example, studies have shown that stress can disrupt the composition of the gut microbiome, which in turn can lead to inflammation and changes in brain function. While more research is needed to fully understand the gut-brain connection, there is no doubt that this is an area of great potential importance.
What are the 3 parts of the enteric nervous system?
The autonomic nervous system is responsible for the control of smooth muscle and glands, as well as many other organs. The enteric nervous system neurons are a part of this system and can be classified into three groups: intrinsic primary afferent neurons, interneurons, and motor neurons. Intrinsic primary afferent neurons are responsible for monitoring conditions within the gastrointestinal tract, such as pH levels and the presence of nutrients or toxins. Interneurons relay information between the primary afferent neurons and the motor neurons, which control the movements of the gastrointestinal tract. The ENS is a complex and essential part of the autonomic nervous system and plays a vital role in maintaining homeostasis within the body.
What are the two main functions of the enteric nervous system?
ENS is a complex network of neurons that controls the motility and secretions of the gastrointestinal tract. The ENS is often referred to as the "second brain" because it is able to function independently of the central nervous system (CNS). The ENS is divided into two main regions: the myenteric plexus and the submucous plexus, and each has a different role in gut function.
The myenteric plexus is located between the longitudinal and circular muscle layers of the GI tract. It controls peristalsis, which is the rhythmic contraction of gut muscles that propels food through the digestive system. The myenteric plexus is also responsible for regulating blood flow and mucus secretion in the GI tract.
The submucous plexus is located in the mucosal layer of the gut. It controls secretions, such as enzymes and bile, that are necessary for digesting food. The submucous plexus also regulates blood flow in the mucosal layer and helps to protect the gut from bacteria and other potentially harmful substances.
The Gut-Brain Connection
There is a gut-brain connection that is real and you probably have felt it many times during your life. Your brain and gut are connected in more ways than you may realize. For example, have you ever gotten “butterflies” in your stomach when you’re nervous or excited about going on a first date? That’s because your brain and gut are communicating with each other. When you feel nervous or excited, your brain sends signals to your gut that can cause it to feel butterflies. This is just one example of how your brain and gut are connected. Another example would be when you feel anxious about an upcoming presentation at work, your brain sends signals to your gut that can cause it to feel sick. This is because anxiety can trigger a stress response in your body that can affect your digestive system.
These physical sensations are the result of the connection between your gut and brain. Studies have shown that the gut and brain are connected through a complex network of nerves and hormones. This connection is sometimes referred to as the "gut-brain axis." The gut-brain axis is important for maintaining healthy Digestive System functioning and overall well-being. When the gut-brain axis is disrupted, it can lead to digestive problems, mood disorders, and other health issues.
The next time you experience butterflies or an upset stomach, remember that it’s just your brain and gut communicating with each together!
How do the gut and brain communicate?
There are a few ways. First, the gut and brain are connected by the vagus nerve, which runs from the brainstem to the gastrointestinal tract. This nerve relays information about the state of the digestive system to the brain. Since the gut is home to trillions of bacteria, these can produce chemicals that can send electrical signals to the brain resulting in mood or behavior changes. For example, studies have shown that bacterial imbalances can contribute to anxiety and depression.
Second, the gut and brain communicate through hormones. For example, when you’re stressed, the body produces the hormone cortisol in your adrenal glands. This hormone can affect the motility of the GI tract and increase inflammation.
Finally, the gut produces many of its own neurotransmitters, including serotonin and dopamine. These substances help to regulate mood and can influence everything from appetite to pain perception. In fact, some research suggests that low levels of serotonin may be linked to depression and anxiety. So, next time you're feeling down, it might be worth taking a closer look at your gut health. Follow your gut feeling.
Taken together, it's clear that the gut and brain are in constant communication with one another.

Does your gut control your brain?
The connection between the gut and the brain is a complex one, and scientists are only just beginning to understand how they interact. The gut is home to a vast number of microbes, which play an important role in digesting food and regulating the immune system. These gut microbes also produce various compounds that can affect mood and behavior. For example, studies have shown that gut bacteria can influence the way we process information and make decisions. In one study, participants who were given a probiotic supplement showed improved performance on memory tests. Additionally, research suggests that gut microbes may be involved in Psychiatric disorders such as anxiety and depression. While more studies are needed to confirm these findings, it is clear that the gut has a significant impact on brain health. Therefore, it is not surprising that many people say they "think with their stomach." By better understanding the connection between the gut and the brain, we may be able to develop new treatments for conditions like anxiety and depression. Love your body by feeding your gut what it needs, you will be rewarded with gut health, brain health, and better brain functioning to handle life challenges.
How do I fix my brain gut connection?
The so-called “brain-gut axis” is a two-way street, with signals going from the brain to the gut and vice versa. This communication is essential for maintaining a healthy balance in the body and many different bodily functions, including digestion, immunity, and mood.
Many factors can disrupt the brain-gut axis, including stress, poor diet, and certain medications. When something goes wrong with the brain-gut connection, it can lead to problems like irritable bowel syndrome (IBS), anxiety, and depression. Fixing the brain-gut connection requires a multifaceted approach that includes dietary changes, stress management, and probiotic supplementation. Probiotics, for example, have been shown to promote healthy gut microbes and alleviate symptoms of anxiety and depression. It is important to eat a balanced diet that includes plenty of fiber and fermented foods. These nutrients help to nourish the gut bacteria and support a healthy immune system.
Stress management is key to maintaining a healthy brain-gut connection. Stress can disrupt the communication pathway between the brain and the gut, so it is important to find ways to reduce stress in your life. Mindfulness meditation has been found to be helpful in restoring the balance between the brain and the gut because you are intentionally affecting the physiology of your body through the activation of your parasympathetic nervous system. This action tells your body to rest and digest.
By taking the steps mentioned above, you can improve the communication between these two vital systems and improve your overall health and well-being.
Do your intestines have pain receptors?
The intestines are a long, tubular, coiled structure that makes up a large part of the digestive system. They are lined with smooth muscle tissue and have many different functions, including breaking down food, absorbing nutrients, and eliminating waste. The intestine is also home to a large number of bacteria, which play an important role in digestion. Despite all of these different functions, the intestines do not have pain receptors. This means that they cannot sense pain in the traditional sense. However, the intestines are very sensitive to changes in temperature, pressure, and other stimuli. For example, you may feel cramping or bloating when you eat certain foods or drink carbonated beverages. These sensations are caused by the muscles of the intestine contracting or expanding in response to the stimuli. While pain receptors are not present in the intestine, this does not mean that the area is entirely insensitive to pain. In fact, intestinal pain is a very real and debilitating condition that can be caused by a variety of factors, including inflammation, infection, and tumors. If you experience persistent intestinal pain, it is important to see a doctor so that the cause can be diagnosed and treated.
Improving your gut health can have a profound impact on your overall health and well-being. Not only will you feel more balanced and have an optimized brain, but you’ll also find that you have more energy to tackle whatever life throws your way. If you’re looking for ways to improve your gut health, start by taking back control of the foods that you eat. Add plenty of probiotics, and fermented foods into your diet, and avoid processed foods as much as possible. When it comes to supplements, look for something that contains both probiotics and prebiotics. And lastly, make sure you get enough exercise and a good night's sleep; both are essential for a healthy gut brain connection. What changes will you make to improve your gut health? Let us know in the comments below!
Frequently Asked Questions
What is your gut brain?
Your gut-brain is known as the enteric nervous system, sometimes known as ENS. Like our brains, our intestines contain a variety of neural / neurotransmitters as your central nervous system. The gut brain stretches from your esophagus to the anus.
Is the vagus nerve the second brain?
No, the vagus nerve is the longest and most complex nerve in the human body. It begins in the brainstem and extends all the way to the stomach. This nerve is responsible for a variety of functions, including heart rate, digestion, and immune response. Some scientists have nicknamed it the "second brain" because of its importance in regulating the body's systems. However, this nickname can be misleading. The vagus nerve does not have its own independent consciousness. Instead, it acts as a sort of relay station between the brain and the rest of the body. This means that it plays an essential role in keeping the body functioning properly, but it is not truly a second brain.
Are genes involved in functional gastrointestinal disorders?
Functional gastrointestinal disorders (FGIDs) encompass a wide range of conditions that affect the stomach and intestines. Common symptoms include abdominal pain, bloating, constipation, and diarrhea. While the exact causes of FGIDs are not fully understood, it is clear that genes play an important role. Studies of twins have shown that FGIDs tend to run in families, and researchers have identified several genes that are associated with these disorders. In addition, studies of adoptions have shown that children are more likely to develop FGIDs if their biological parents have these conditions. This suggests that genes play a significant role in the development of FGIDS. However, it is important to note that environmental factors, such as stress and diet, can also contribute to these disorders. As research continues, it is hoped that a better understanding of the role of genes will lead to more effective treatments for FGIDs.
What is Irritable bowel syndrome?
Irritable bowel syndrome (IBS) is a fairly common digestive disorder that affects the large intestine. IBS is a chronic condition that can cause abdominal pain, bloating, cramping, diarrhea, and constipation. Symptoms may vary from person to person and can range from mild to severe. While there is no cure for IBS, the condition can be managed with lifestyle changes and medications. Some people with IBS find that making dietary changes, such as avoiding trigger foods, can help to reduce symptoms. Other helpful treatments may include stress reduction techniques, probiotics, and over-the-counter medications. If you think you may have IBS, speak to your doctor for diagnosis and treatment.
What part of the brain controls the gut?
Multiple parts of the brain control the gut/stomach. These include the medulla oblongata, which controls vomiting; the hypothalamus, which regulates hunger; and the amygdala, which is responsible for fear and anxiety.
What is the gut brain axis?
The gut brain axis is a term used to describe the communication between the gut and the brain. The gastrointestinal tract is lined with trillions of bacteria, many of which are beneficial. These bacteria help to break down food and absorb nutrients, and they also produce vitamins and other compounds that are essential for health. In addition, the bacteria in the gut play a role in immune function and inflammation. The brain is able to communicate with the gut through a network of nerves, hormones, and immune cells.
This communication is essential for maintaining a healthy balance of gut bacteria. disruptions in this communication can lead to gastrointestinal disorders such as irritable bowel syndrome and inflammatory bowel disease.
Why is the enteric nervous system referred to as the gut brain?
ENS is a network of neurons that runs through the gastrointestinal tract. It is responsible for controlling and coordinating the many functions of the gut, such as peristalsis and secretion. ENS is sometimes referred to as the "gut brain" because it is capable of carrying out these functions independently of the central nervous system. In fact, ENS has been likened to a mini-brain, complete with its own circuitry and neurotransmitters. Although it is not as complex as the brain, ENS plays an important role in maintaining gut health. Therefore, it is not surprising that disorders of the gut have been linked to problems with mood and behavior. In other words, the gut really is like a second brain.
Are there nerves in your intestines?
Nerves are an important part of the body's nervous system. They relay messages between the brain and other parts of the body and help to regulate various functions. Most people are familiar with the nerves in their arms and legs, but nerves are actually found throughout the body, including in the intestines. ENS is a network of nerves that helps to control digestion. It is responsible for relaying messages between the brain and the digestive tract, and for coordinating contractions of the stomach and intestine muscles. This system can operate independently from the brain, which is why people can still have a bowel movement even if they are unconscious. However, this also means that the ENS can be affected by stress and emotions. For instance, butterflies in your stomach before a big event are actually caused by increased activity in the enteric nervous system!
What nerves affect the intestines?
The nervous system is a complex network of nerves and cells that carries messages between the brain and the rest of the body. ENS is a specialized network of nerves that is responsible for controlling the intestines. The ENS is made up of two main types of nerve cells: intrinsic and extrinsic. Intrinsic nerve cells are located within the walls of the intestine, and extrinsic nerve cells are located outside the intestine in the abdominal cavity. Together, these nerve cells help to control movements of the intestines, regulate blood flow, and Release digestive juices. The ENS is also linked to the central nervous system (CNS), which includes the brain and spinal cord. This connection allows messages to be sent between the intestine and the brain, allowing the brain to control and adapt digestive processes as needed. Understanding how the enteric nervous system works is essential for understanding how nerves affect the intestines.
What is gut microbiota?
The gut microbiota is the collection of all the microorganisms that live in the gastrointestinal tract. You may have heard of probiotics, which are live microorganisms that can confer health benefits when consumed. These microorganisms are found in fermented foods like yogurt, sauerkraut, and kimchi, and they are also available in supplement form. Probiotics are just one type of microorganism that resides in the gut, which is collectively known as the gut microbiota. The gut microbiota is made up of trillions of microbes, including bacteria, viruses, fungi, and protozoa. These microbes play an important role in digestion, nutrient absorption, and immune function. In addition, recent research has linked gut microbiota to a variety of other health conditions, including obesity, allergies, and anxiety. Therefore, maintaining a healthy gut microbiota is essential for overall health.