When people think about trauma, they usually think about emotions first. They think about anxiety, fear, sadness, or memories that will not go away. What often gets missed is that trauma can also affect the body in very real ways, especially the gut, appetite, energy levels, weight, and blood sugar.
This is one reason so many trauma survivors struggle with symptoms that seem unrelated at first. They may experience symptoms such as indigestion, bloating, constipation, diarrhea, fatigue, headaches, chronic pain, weight gain, weight loss, or issues with blood sugar. These symptoms are not imaginary. They can be part of the way the body responds to long periods of stress, fear, and emotional harm (Felitti et al., 1998; Goodwin & Stein, 2004; Rieder et al., 2017).
The gut and the brain are constantly communicating. Researchers often call this the gut-brain axis. This system helps regulate digestion, appetite, inflammation, stress hormones, and even mood. When a person lives through abuse, neglect, chronic criticism, or ongoing fear, that stress can disrupt how this system works. Over time, it can leave the body feeling tense, reactive, tired, and out of balance (Mayer, 2011; Moludi et al., 2024; Vanuytsel et al., 2014).
For some people, trauma shows up as stomach pain or bowel changes. For others, it shows up in emotional eating, loss of appetite, or a body that seems to stay stuck in survival mode. Many people feel ashamed of these symptoms, especially when weight gain or diabetes becomes part of the picture. In reality, there are strong biological, emotional, and behavioural links between childhood adversity and adult health conditions such as obesity and type 2 diabetes (Basile et al., 2021; Lin et al., 2022; Rich-Edwards et al., 2010).
Research suggests that adverse childhood experiences are associated with a higher risk of obesity in adulthood. Some reviews have found that repeated adversity is linked to a meaningful increase in the odds of adult obesity, likely through a mix of chronic stress, inflammation, disrupted eating patterns, sleep problems, and changes in coping behaviour (Danese & Tan, 2014; Fuemmeler et al., 2021; Wiss & Brewerton, 2020). Trauma can also affect hunger and fullness cues, making it harder for people to trust their bodies or eat in a steady and regulated way.
Diabetes can also fit into this same pattern. Studies have found that childhood abuse, neglect, and household dysfunction are associated with a higher risk of diabetes later in life. This may happen because trauma affects cortisol, glucose regulation, sleep, mental health, inflammation, and health habits over time (Campbell et al., 2016; Lin et al., 2022; Mezuk et al., 2013). Depression can also play a role, which is important because trauma, mood, and blood sugar often affect one another in a cycle rather than as separate issues (Herbert et al., 2022; Moludi et al., 2024).
This does not mean trauma always leads to obesity or diabetes. It does mean that trauma can become part of the larger story. For some people, the body holds stress through stomach problems and chronic tension. For others, it may show up in blood sugar swings, emotional eating, exhaustion, or difficulty managing weight, even when they are trying hard.
Common signs that trauma may be affecting the body include digestive upset, nausea, bloating, constipation, diarrhea, chronic pain, fatigue, poor sleep, headaches, appetite changes, blood sugar instability, and ongoing anxiety or shutdown. These symptoms deserve care, not shame.
Healing often needs to include the body as well as the mind. Talk therapy can help people understand their story, but body-based support can also be important. Gentle breathwork, grounding, yoga, mindfulness, and other somatic practices may help calm the nervous system and create a greater sense of safety inside the body. When the body feels safer, digestion, sleep, mood, and self-regulation often improve as well (Mehling et al., 2011; Payne et al., 2015; Price & Hooven, 2018).
A few simple practices may help support nervous system regulation:
- Place one hand on your chest and one on your belly, and lengthen your exhalation.
- Notice five things you can see, four you can feel, three you can hear, two you can smell, and one you can taste.
- Try gentle and flowing movement as your body allows.
- Pause and ask, “What does my body need right now?”
- Practice self-compassion instead of self-criticism when symptoms flare.
For many people who have experienced chronic stress or trauma, healing begins when they stop asking, “What is wrong with me?” and start asking, “What has my body been carrying?” That shift can open the door to a more compassionate and effective path forward.If chronic stress or trauma are affecting your digestion, energy, mood, weight, or sense of safety in your body, therapy can help. Trauma-informed therapy can support nervous system regulation, emotional healing, and a stronger connection to yourself so that recovery becomes possible in both mind and body.
At Heartberry Counselling, we offer a safe, compassionate space to begin that journey. Contact us for a free 30 minute consultation.
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This post is for educational purposes only and does not constitute medical, psychological, or legal advice. All claims are drawn from peer-reviewed research and clinical sources. Sources available upon request.
References
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Campbell, J. A., Walker, R. J., & Egede, L. E. (2016). The link between adverse childhood experiences and diabetes. Current Diabetes Reports, 16(6), 54. https://link.springer.com/article/10.1007/s11892-016-0740-8
Danese, A., & Tan, M. (2014). Childhood maltreatment and obesity: Systematic review and meta analysis. Molecular Psychiatry, 19(5), 544 to 554. https://www.nature.com/articles/mp201354
Felitti, V. J., Anda, R. F., Nordenberg, D., Williamson, D. F., Spitz, A. M., Edwards, V., Koss, M. P., & Marks, J. S. (1998). Relationship of childhood abuse and household dysfunction to many of the leading causes of death in adults. American Journal of Preventive Medicine, 14(4), 245 to 258. https://www.ajpmonline.org/article/S0749-3797(98)00017-8/fulltext
Fuemmeler, B. F., Stroo, M., Donahue, K. E., Hoyo, C., Loftfield, E., & Moskowitz, D. (2021). The association between adverse childhood experiences and adult obesity in a population based study. Scientific Reports, 11, 15516. https://www.nature.com/articles/s41598-021-93242-4
Goodwin, R. D., & Stein, M. B. (2004). Association between childhood trauma and physical disorders among adults in the United States. Psychological Medicine, 34(3), 509 to 520. https://pubmed.ncbi.nlm.nih.gov/15259836/
Herbert, J., Nouwen, A., & Schmitz, N. (2022). Depression mediates the association between childhood emotional abuse and the onset of type 2 diabetes. Frontiers in Psychiatry, 13, 825678. https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2022.825678/full
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Moludi, J., Khedmatgozar, H., Nachvak, S. M., & Abdollahzad, H. (2024). Gut brain axis: Unveiling the interplay between diabetes and metabolic health. Cureus, 16(8), e67812. https://pmc.ncbi.nlm.nih.gov/articles/PMC11438540/
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Kim L McCullough
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