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Apart from treating underlying reversible causes (e.g., stopping or reducing certain medications, treating autoimmune causes), several measures can improve the symptoms of orthostatic hypotension and prevent episodes of syncope (fainting). Even small increases in the blood pressure may be sufficient to maintain blood flow to the brain on standing.
Research suggests that the same vascular mechanism and nerve implicated in "brain freeze" cause the aura (sensory disturbance) and pulsatile (throbbing pain) phases of migraines. [ 14 ] It is possible to have a cold-stimulus headache in both hot and cold weather, contrary to popular belief , because the effect relies upon the temperature of the ...
This causes the brain to lose its buoyancy, which results in pressure on pain-sensitive areas like the dura and blood vessels. The resulting pain is a headache , and because the brain is more reliant on its buoyancy in an upright position the headache can be relieved by switching to a horizontal position.
Brain mass, benign intracranial hypertension (pseudotumor cerebri), meningitis: Increased intracranial pressure pushes on the eyes (from inside the brain) and causes papilledema. Neuroimaging, lumbar puncture Severe headache following head trauma: Brain bleeds (intracranial hemorrhage, subdural hematoma, epidural hematoma), post-traumatic headache
An increase in pressure, most commonly due to head injury leading to intracranial hematoma or cerebral edema, can crush brain tissue, shift brain structures, contribute to hydrocephalus, cause brain herniation, and restrict blood supply to the brain. [13] It is a cause of reflex bradycardia. [14]
Individuals with exploding head syndrome hear or experience loud imagined noises as they are falling asleep or are waking up, have a strong, often frightened emotional reaction to the sound, and do not report significant pain; around 10% of people also experience visual disturbances like perceiving visual static, lightning, or flashes of light.
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Symptoms are thought to arise from transient abnormalities in the blood vessels of the brain. [1] In some cases, it may be associated with childbirth, vasoactive or illicit drug use, or complications of pregnancy. [1] If it occurs after delivery it may be referred to as postpartum cerebral angiopathy.