31 Strange Causes of Headaches That Have Nothing to Do With Dehydration

Lisette Marie

14. Your Gut Health: The Brain-Gut Connection

Focused on balancing my gut. Photo Credit: Envato @YuriArcursPeopleimages

Your digestive system and brain are more connected than you think. An imbalanced gut microbiome—caused by poor diet, stress, or antibiotics—can lead to inflammation, which triggers headaches. Some people experience migraines as a response to gut issues like food sensitivities, bloating, or irritable bowel syndrome (IBS). Eating probiotic-rich foods (like yogurt, kimchi, and sauerkraut) and reducing highly processed foods may improve gut health and lessen headache frequency.

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14. Your Gut Health: The Brain-Gut Connection

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