Migraine is best understood as a state of hyperexcitability in the trigeminovascular pain system. The problem is not only that a pain signal appears; it is that the system that generates and interprets the signal has a lower threshold for firing than it should.
At the periphery, trigeminal nerve endings become easier to activate. CGRP release, neurogenic inflammation, and meningeal vasodilation all push the system towards firing. In the centre, the brainstem, thalamus, and cortex amplify the input through central sensitisation.
This is why migraine can seem disproportionate to the trigger. A small stimulus, or sometimes no clear stimulus at all, can produce a large pain response because the pathway is already overexcited.
Therefore, migraine is not merely a headache; it is an overactive nociceptive network that has become too easy to switch on and too hard to switch off.
Hyperexcitability doesn’t improve Cognition
Hyperexcitability doesn't improve Cognition
Hyperexcitability does not improve cognition. It usually does the opposite: it raises background noise, lowers the signal-to-noise ratio, and makes information processing less stable.
In migraine, this is why increased neural firing is not a sign of better mental performance. The same state that makes trigeminal nociceptors easier to activate also makes attention, memory, and processing speed less reliable, especially during an attack or in central sensitisation.
Any apparent link between migraine and creativity is indirect. It may reflect sensitivity, divergent association, or unusual perception, but not improved cognitive function.
More excitation is not the same as better thought.
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