Chronic headaches and migraines are often caused by mechanical dysfunction in the cervical spine rather than a primary neurological disorder. Poor posture, muscle tension, stress, or joint restriction in the upper neck can irritate nerves that refer pain into the head and face. When cervical joints lose proper alignment or mobility, inflammation increases and muscles tighten, creating recurring headache patterns. Medications may temporarily reduce symptoms, but without correcting the structural cause, headaches frequently return and worsen over time.