The Brain-Gut Connection: How The “2nd Brain” Of Your Body Affects Your Digestion & Mood

The Brain-Gut Connection

Inside your digestive system, lies a very intricate system of nerves.

Dubbed the “2nd brain”, the enteric nervous system (ENS) consists of two thin layers of more than 100 million nerve cells lining your gastrointestinal tract.

Now, this mini brain in your gut is very closely connected to your actual brain, and they affect each other more than you think.

What Does The ENS Do?

Unlike it’s bigger counterpart, the ENS can’t do complicated things like compose music, or do calculations.

It’s main job is making sure you digest your food properly.

From swallowing to the release of digestive juices that breakdown food, to the control of blood flow that helps with nutrient absorption.

Now, though it isn’t capable of thought, it communicates back and forth with our big brain, emotionally.

If your ENS is in bad shape, it may trigger big emotional shifts — most commonly experienced by people coping with irritable bowel syndrome (IBS) and functional bowel problems such as constipation, diarrhea, bloating, pain and stomach upset.

This is the complete opposite of what the scientific community has deduced — which was moods affecting digestion.

However, with more studies done on the ENS, it has been revealed that your digestive system has a major impact on your mood as well.

How Does Menopause Relate to This?

It’s known that during menopause — a time of major hormonal change, your digestive health usually takes a hit.

When your gut health declines, your ENS is directly affected.

This may lead to worse digestion, and it may even affect your moods — causing anxiety, depression, paranoia, stress and more.

How To Maintain Your ENS Health

In short, you have to make sure you improve your gut health.

As long as you bolster your gut health during menopause, your ENS should be up and running properly in no time!

The easiest way to improve your gut health — and in turn your ENS health — is through changes in your diet.

Namely, include these foods that are specifically beneficial:

Omega-3 fats: Studies show that omega-3s can increase good bacteria in the gut and reduce risk of brain disorders. Sources Include:

  • Fish & other seafood (especially cold-water fatty fish, such as salmon, mackerel, tuna, herring, and sardines)
  • Nuts & seeds (such as flaxseed, chia seeds, and walnuts)


Fermented foods: Contains probiotics, healthy bacteria that improves gut health & digestion. Sources include yogurt, kefir, sauerkraut and cheese.

High-fiber foods: Prebiotics can not only improve digestion but also reduce stress levels naturally. Sources include:

  • Whole grain, nuts, seeds
  • Fruits & vegetables

Polyphenol-rich foods: Polyphenol are plant chemicals that may improve mood and foster better gut bacteria. Sources include:

  • Cocoa, coffee
  • Green tea, olive oil

Tryptophan-rich foods: An amino acid that is converted into the happiness hormone serotonin. Source include:

  • Turkey
  • Eggs & cheese

PS. Along with these foods, probiotics are a must-have if you’re looking to improve your gut health.

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