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What Can Trigger Migraines? Understanding Common Migraine Triggers

Migraine triggers vary significantly between individuals and can include hormonal changes, dietary factors, and environmental stimuli

22 Aug 2026 1 min read

Migraine triggers are specific factors that can initiate a migraine attack in susceptible individuals. These triggers vary significantly from person to person, and identifying your personal triggers is an important step in migraine management. Common triggers include hormonal changes, particularly in women during menstruation, pregnancy, or menopause, as fluctuating estrogen levels can precipitate attacks.

Dietary triggers are frequently reported and may include aged cheeses, processed meats containing nitrates, alcohol (especially red wine), caffeine withdrawal, artificial sweeteners, and monosodium glutamate (MSG). Skipping meals or fasting can also trigger migraines due to low blood sugar levels. Environmental factors such as bright or flickering lights, strong odors, weather changes, and high altitude can serve as triggers for some individuals.

Stress, both emotional and physical, is one of the most commonly cited migraine triggers. This includes work-related stress, major life changes, intense physical exertion, and disrupted sleep patterns. Changes in sleep schedule, whether too little or too much sleep, can trigger attacks. Other potential triggers include certain medications, dehydration, and sensory stimuli like loud noises.

Keeping a detailed migraine diary can help identify your specific triggers by tracking potential trigger exposure alongside migraine occurrence. Once triggers are identified, avoiding or managing them when possible may help reduce migraine frequency. However, it's important to work with a healthcare provider to develop a comprehensive migraine management plan, as trigger avoidance alone may not be sufficient for all patients.

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