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Chronic Migraine
Chronic migraine is a neurological disease, not just a bad headache. It involves intense, often one-sided pulsing pain with nausea and sensitivity to light and sound, occurring on a high number of days per month over time. This frequency makes it disabling and places it firmly under specialized medical care.
What happens in the nervous system
Migraine rests on a hypersensitive nerve network. Under the influence of triggers, a wave of abnormal activity crosses the cortex and activates the trigeminal nerve, which supplies the face and the membranes around the brain. The activated nerve then releases substances, including CGRP, that inflame and dilate nearby vessels and amplify the pain, turning a trigger into a full attack.
What triggers chronic migraines?
Chronic migraine develops through a combination of an excitable nervous system and everyday factors that lower the threshold for attacks. Understanding these contributors, alongside a specialized medical diagnosis, helps explain why episodic migraine can gradually shift into a chronic, more frequent and more disabling pattern over time.
A hypersensitive nerve network
At the core of migraine is a brain that is more excitable than usual. Its nerve pathways respond strongly to stimuli, activating the trigeminal nerve and setting off an inflammatory cascade around the vessels. This underlying sensitivity is why migraine is considered a neurological disease rather than an occasional headache.
From episodic to chronic
With repeated attacks, the pain system becomes sensitized: the threshold drops and headaches grow more frequent, so episodic migraine can tip into chronic migraine. Frequent use of pain medication can paradoxically sustain this cycle, which is one reason medical follow-up is important.
Hormonal and lifestyle triggers
Hormonal fluctuations, including those linked to the menstrual cycle, can act as powerful triggers, as can irregular sleep, dehydration and certain foods. Because triggers are highly individual, a headache diary often helps identify the personal patterns that precede attacks.
Stress and sensory load
Stress, and especially the let-down after a stressful period, frequently precedes attacks, along with bright light, screens and sensory overload. These factors do not cause migraine on their own, but in an already sensitive nervous system they can push it over the threshold into a crisis.
How to Prevent
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Chronic Migraine Injections