Abstract:Well delineated precipitating factors of migraine or incapacitating headaches are well known in the literature. Few peculiar and under-recognized precipitants are crying, shouting, straining in stools, urination, orgasm, childbirth, powerlifting. We present a case of a young student whose laughing aloud is a potent headache precipitant and is consistently reproducible despite normal brain imaging. It is worth mentioning here that laugh-induced headache has recently been assigned a place in the International Cl… Show more
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