Your gut talks to your brain. Are you listening?

A trend that is changing medicine: everything you feel in your head starts in your gut. And vice-versa.

Have you ever had "butterflies in your stomach" before an important meeting? Or a stomach ache on a stressful day? Or perhaps after a sleepless night, you felt not only sleepy but also in a worse mood than usual?

This is not a coincidence. This is science.

Your gut and your brain are connected much more deeply than you previously thought. And what happens in your gut directly impacts how you think, how you feel, and how you cope with work, difficult conversations, or daily challenges.

In this article, I will show you how this fascinating axis works, why the gut microbiota is one of the most important "organs" of your body, and what you can do to take care of both sides of this connection. 

What is the gut-brain axis? A brief, surprising introduction

Imagine your gut has its own nervous system. Not a metaphor, literally. The gut is surrounded by a network of over 200 million neurons – more than in the spinal cord. That's why scientists often call the gut the "second brain".

Both brains are connected by the vagus nerve – one of the longest neural connections in the body. It runs from the brainstem all the way to the gut and transmits information in both directions around the clock. This is not an sporadic connection. It's a constant, uninterrupted flow of signals.

And what's interesting: as much as 80-90% of all signals travel from the gut to the brain, not the other way around. It is the gut that informs the brain about its state, not the brain that directs the gut.

"Your gut doesn't react to your mood. Your mood reacts to your gut."

Serotonin: the happy hormone lives... in your gut

When you think of serotonin, you probably imagine the brain. However, as much as 90% of the body's serotonin is produced by the gut. Not the brain. The gut.

Serotonin is a neurotransmitter responsible for, among other things:

  Sense of well-being and emotional calm

  Sleep quality and regularity

  Concentration and clarity of thought

  Appetite and satiety

  Energy levels throughout the day

When the gut microbiota is in balance, serotonin production runs smoothly. When the microbiota is disturbed, deficiencies occur, which you feel in your head, even if your gut "doesn't hurt."

What happens when the microbiota is imbalanced?

Each of us has over 38 trillion microorganisms – bacteria, fungi, and viruses – in our gut, forming a unique ecosystem. When this ecosystem is healthy, it works for you. When it's disturbed, it works against you.

Symptoms of a disturbed microbiota often mislead people because they... don't directly concern the gut:

Brain and emotions:

• Chronic anxiety – proneness to anxiety states
• Mood swings – irritability without clear reason
• Concentration problems – difficulty thinking, "brain fog"
• Poorer sleep – trouble falling asleep or non-restorative sleep

Body and immunity:

• Reduced immunity – frequent infections, long convalescences
• Chronic fatigue – long-term exhaustion despite rest
• Digestive problems – bloating, discomfort, irregularity
• Worsened skin condition – skin that reacts to stress or diet

Good news: the microbiota is plastic. It can be supported, regenerated, and strengthened, and its improvement directly translates into how you feel every day.

How to take care of the gut-brain axis? Concrete steps

Taking care of your microbiota is one of the best gifts you can give to your daily well-being. Here's where to start:

  Eat a varied diet – the greater the variety of plants in your diet, the richer your microbiota.

Goal: 30 different plants per week.

  Hydrate yourself – water supports intestinal transit and provides an environment for good bacteria.

  Prioritize sleep – sleep regularly, at consistent times. The microbiota has its own biological clock.

  Move daily – even 30 minutes of walking daily benefits the microbiome.

  Manage stress – breathing techniques, mindfulness, and contact with nature have a measurable impact on the microbiota.

  Support the microbiota from within – natural postbiotics and probiotics provide the body with what it needs most.

Support from within: The Pretty Care approach 

At Pretty Care, we believe that true balance begins in the gut. That's why our products are designed to support the microbiome at a level that truly impacts well-being.

Our liquid postbiotics and probiotics are fermented essences from natural ingredients, based on 19 strains of bacteria and enriched with bioactive metabolites formed during fermentation. The liquid form means higher bioavailability – active ingredients reach where they are needed much faster than in capsules.

•   Immun PostBiotiQ – a liquid postbiotic supporting immunity and gut microbiome balance.
•   Balance BiotiQ – a raspberry-flavored probiotic that helps restore harmony to the intestinal flora.
•   Deep Sleep Elixir – an evening calming elixir that works on the gut-brain axis and supports restorative sleep.
•   AntyOxy PostBiotiQ – an antioxidant fermented formula that protects cells from oxidative stress.

Each product is the result of collaboration between science and nature. Created with Dr. Justyna Piechocka and Professor Daria Szymanowska, because we believe that combining heart and knowledge yields the best results.