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It's called 'Gut Feeling' for a reason: exploring the fascinating gut-brain connection

Sep 20, 2023
Exploring the fascinating gut-brain connection

We've all experienced it at some point in our lives - that undeniable sensation in our stomach that seems to have a mind of its own. Whether it's the fluttering butterflies before a big presentation or a bothering feeling that something isn't quite right, these sensations are often referred to as "gut feelings." But have you ever wondered why we call them that? What is the science behind this intriguing gut-brain connection? In this blog post, we will explore the world of gut feelings and the reasons behind them.

The gut-brain connection

The gut-brain connection, also known as the "enteric nervous system," is a complex network of neurons that goes from our esophagus to our rectum. This network communicates with the central nervous system, allowing our brain and gut to exchange information. But what does this have to do with gut feelings?

  1. The second brain: Did you know that the gut contains over 100 million neurons, which is more than the spinal cord? This "second brain" in our gut, known as the enteric nervous system, plays a vital role in regulating digestion, but it also has a significant impact on our emotions and feelings. The gut-brain connection allows these two "brains" to communicate, influencing our mood, thoughts, and even decision-making processes.

  2. Emotions and gut feelings: Research has shown that our gut is not only responsible for digesting food but also for influencing our emotions. The gut-brain connection is bidirectional, meaning that emotions can influence the gut, and vice versa. When we experience stress, anxiety, or excitement, the brain signals the gut, leading to familiar sensations like butterflies in our stomachs. These gut reactions are our body's way of responding to emotional stimuli.

  3. Gut microbiota: Another exciting aspect of the gut-brain connection involves the trillions of microorganisms living in our gut, collectively known as the gut microbiota. Recent studies have shown that these microorganisms play a crucial role in our mental health and well-being. They produce neurotransmitters, such as serotonin, which are essential for regulating mood. Imbalances in the gut microbiota have been linked to conditions like depression and anxiety, further emphasizing the connection between our gut and our emotions.

Trusting your gut:

Given the profound influence of the gut-brain connection on our emotions and feelings, it's no wonder that we often refer to our instincts as "gut feelings." But how can we learn to trust and listen to our gut? Here are some tips:

  1. Pay attention: Start by becoming more aware of the physical sensations in your gut when you're faced with a decision or a situation. Note how your stomach feels, whether it tightens or relaxes.

  2. Reflect: Take the time to reflect on your gut feelings. What are they trying to tell you? Are they signaling caution or excitement? Trusting your gut often involves understanding the underlying emotions.

  3. Practice mindfulness: Mindfulness techniques, such as meditation, can help you tune into your body and become more in touch with your gut feelings.


The gut-brain connection is a fascinating area of research that sheds light on the mysterious world of gut feelings and why we call them that. Our gut's complex neural network, the role of gut microbiota, and the bidirectional relationship between our gut and emotions all contribute to our intuition and instincts. So, the next time you get those butterflies in your stomach, remember that it's not just a saying - it's your body's way of communicating with you. Trust your gut, and it might just lead you in the right direction.

This article was authored by Kristina Zalnieraite, Licensed Dietitian and Head of Dietetics and Medical Affairs @ Do you need support with a symptom, condition or gut health goal? You can book a free online consultation with Kristina here.

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