• Dr. Dooreck with Joie Meyer | Public Health

The Gut-Brain Connection (aka the Gut-Brain Axis)—Why does it matter?

Actualizado: ene 20

Have you ever felt butterflies in your stomach?

Had a gut-wrenching experience?

Felt sick before an exam or an important presentation?

These experiences aren't just a coincidence. Your brain and gut work closely together, so much so that the lining of your gut is often called your "second brain". Therefore, a healthy gut means a healthy mind as well. Read more to learn about what this means for your mental and physical health.

What is the "gut-brain" connection aka the "gut-brain axis"?

Simply put, there is part of your body's nervous system in the lining of your gut, called the Enteric Nervous System (ENS). Your ENS is made of hundreds of millions of nerve cells in your gut. The ENS communicates with your brain to control digestion.

The "fight or flight" reaction is perfectly explained by this brain-gut connection.

When a person feels threatened or in danger, your brain sends signals all throughout your body to prepare for "attack". While your Central Nervous System (CNS) is being activated, so is your Enteric Nervous System (ENS). As a result, your digestion slows down so that you have more energy to fight.

Why is the "gut-brain" connection aka the "gut-brain axis" important?

Your brain can send messages to your gut, but your gut can also send messages to your brain. As a result, we need to look at digestive diseases and mental disorders with a whole new perspective.

Doctors commonly thought that anxiety and depression caused bowel problems like abdominal pain, upset stomach, constipation, and bloating.

However, recent studies show that this may be the other way around. In other words, if your gastrointestinal tract is irritated, it sends messages to your brain's central nervous system (CNS) that results in mood changes.

Since 30-40% of the population suffers from bowel problems at some point, this is critical.

30-40% of the population suffers from bowel problems at some point in their lives

Brian Dooreck MD | Gut Health ➕ Life Balance 
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What does this mean for the treatment of GI disorders?

Now that scientists know more about the ENS-CNS connection, antidepressants or therapy are being looked into as potential treatment methods for IBS and other bowel disorders.

Since your brain and your "second brain" are constantly "talking" to each other, treatments that can help one brain can help the other.

How can I improve my brain health?

As explained in a previous blog post, the trillions of bacteria in your gut make up your microbiome.

A healthy microbiome means a healthy mind, and an unhealthy microbiome is associated with stress, depression, and anxiety.

Luckily, changing your gut bacteria can help your gut health tremendously. Some steps you can take include:

  • Eating a well-balanced diet

  • Managing and reducing your stress

  • Exercising regularly

  • Getting enough sleep

Read this blog post for four easy changes that can help your gut and brain health simultaneously.

Here are some takeaways on this from a public health point of view.

Although dietary changes may benefit your gut health, it is important to ask your physician, a licensed nutritionist = LN, or a registered dietitian = RD, before making any drastic eliminations to your diet.


I eat a high fiber, mostly plant-based 🌱 diet, no red meat, drink 4 liters of water a day, exercise, and am focused on keeping nutrition simple. I am sharing what works for me and what I routinely recommend to my patients.

"Balance. Portion control. Keep nutrition simple. Eat Smart. Eat Healthy. 🌱 🌾 🌿"

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Connect with Dr. Dooreck on LinkedIn where he focuses his sharing on Health, Diet, Nutrition, Exercise, Lifestyle, and Balance.

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