She says when we eat spicy foods, something called our trigeminal nerve is actually irritated.

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The reason may be that capsaicin excites the trigeminal nerve, increasing the body's receptiveness to the flavour of other foods.

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Experts disagree about how a migraine is triggered, but the trigeminal nerve an important pathway that carries sensory information about the face and its connections to numerous other nerves and the brain appear to be responsible for transmitting the pain.

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