Mindblown: a blog about philosophy.
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Postlumbar puncture headache
A headache occurring after a spinal tap that is felt mostly in the front and the back of the head. It is markedly worse when the patient sits up, and better when the patient lies down. The headache is sometimes associated with double vision.
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Mixed headache
Headache that may have features of some combination of migraine headache, tension headache, and analgesic withdrawal.
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Hypnic headache
A headache that awakens a patient from sleep. Hypnic headaches are typically bilateral, and are experienced more often by the elderly than by other patients. Unlike cluster headaches, which also occur during rest or sleep, the hypnic headache is not felt on one side of the face, and not associated with tearing of the eye…
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Exertional headache
An acute headache of short duration that appears after strenuous physical activity. Usually benign, it is relieved by aspirin and prevented by changing to a less strenuous exercise.
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Coital headache
A headache that begins suddenly during coitus or immediately after orgasm. These are uncommon, occur more frequently in men than in women, and may last for minutes or hours.
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Cervicogenic headache
A headache that begins in the superior segments of the cervical spine and radiates to one side of the neck, forehead, and/or shoulder. It typically is worsened by movements or postures of the head or neck, or by pressure applied directly to the neck. It may be relieved by massage, manipulation, or occipital nerve blocks.…
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Caffeine withdrawal headache
Headache, usually mild to moderate in intensity, that begins as someone stops drinking coffee, tea, or other caffeinated drinks. This type of headache usually occurs only in persons who habitually consume more than 4 cups of caffeine daily and is often accompanied by fatigue and malaise.
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Analgesic-rebound headache
A headache that occurs when a patient with chronic or recurring headaches stops using pain relievers. Analgesic rebound is a common cause of daily headache pain; it may respond to treatment with antidepressant medications and withdrawal of the offending analgesics.
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Haze
In ophthalmology, a clouding of vision that makes viewed objects appear smoky or indistinct. Opacification of the cornea is the cause.
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Hayflick’s limit
The maximum number of cell divisions that will take place in human cells prior to their death. In 1961 Hayflick and P. S. Moorehead showed that human cells can reproduce themselves a finite number of times. This limited replication ability is postulated to correlate with the aging, failure, and eventual death of organs and individuals.…
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