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headache is pain or discomfort in the head or face. Headaches vary greatly in terms of the location and intensity of the pain, and how often the headaches occur. The brain tissue doesn’t have pain-sensitive nerve fibers and doesn’t feel pain. But, other parts of the head can be responsible for a headache including:

A network of nerves that extends over the scalp

Certain nerves in the face, mouth, and throat

Muscles of the head, neck, and shoulders

Blood vessels found along the surface and at the base of the brain

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