Gut health & mental health

If you've ever felt "butterflies" before a big conversation, nausea during a stressful moment, or a gut feeling that something was off — you've already experienced the gut-brain connection firsthand. Your gut and brain communicate constantly through the vagus nerve, hormones, and the immune system. When one is struggling, the other often follows.

The gut-brain axis

Your gastrointestinal tract contains its own nervous system — the enteric nervous system — with over 500 million neurons. It produces approximately 90% of your body's serotonin (the neurotransmitter most associated with mood stability and well-being) and about 50% of your dopamine (linked to motivation and pleasure).

The gut microbiome — the trillions of bacteria, fungi, and other organisms living in your digestive tract — plays a central role in this communication. A healthy, diverse microbiome supports neurotransmitter production, reduces inflammation, and helps regulate the stress response. An imbalanced microbiome (dysbiosis) can do the opposite.

How gut problems show up as mental health symptoms

• Anxiety that feels physical — tightness in the chest, racing heart, restlessness — often has a gut inflammation component
• Depression that includes fatigue, low motivation, and brain fog may be linked to impaired serotonin production in the gut
• Emotional reactivity and irritability can worsen when the gut is inflamed or the microbiome is out of balance
• Chronic stress damages the gut lining ("leaky gut"), which increases systemic inflammation and further disrupts mood
• Food sensitivities can trigger immune responses that affect brain function and emotional regulation

The stress-gut cycle

Stress and gut health exist in a feedback loop. Chronic stress — from unresolved trauma, relationship conflict, or life transitions — increases cortisol, which damages the gut lining and disrupts the microbiome. A compromised gut then produces less serotonin and more inflammatory signals, which increases anxiety and depression. Which increases stress. And the cycle continues.

Breaking this cycle often requires addressing both sides: the emotional and relational patterns driving chronic stress, and the physical gut health that's been affected by it.

Why this matters in therapy

When we work together, I pay attention to the whole system — not just your thoughts and emotions, but your body's signals. Nature-based therapy and somatic approaches are especially powerful for gut-brain healing because they activate the parasympathetic nervous system (your "rest and digest" mode), reduce cortisol, and help your body return to a state where healing is possible.

Time in nature has been shown to lower inflammation, improve vagal tone (the health of your vagus nerve), and support microbiome diversity. When we take our work outdoors, we're not just changing the scenery — we're supporting your body's ability to heal from the inside out.

What you can do

• Eat a diverse, whole-foods diet rich in fiber, fermented foods, and anti-inflammatory ingredients
• Reduce processed sugar and ultra-processed foods, which feed harmful gut bacteria
• Manage stress through somatic practices, breathwork, time in nature, and therapy
• Consider working with a functional medicine practitioner for comprehensive gut testing
• Prioritize sleep — your gut microbiome repairs and rebalances during rest
• Move your body regularly — even gentle walking supports gut motility and microbiome health