Current opinion in neurology
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Documentation of disease impact, both on the individual and on society, is vital to ensure that healthcare resources are distributed according to the relative importance of the different disorders. For headache, international initiatives now promote the cause of headache sufferers by documenting the prevalence, burden, and cost. The present review aims to give an update on studies on these aspects of headache that have appeared since 2004. ⋯ Robust and increasing evidence suggests that headache should be taken seriously as a public health problem, not only in the rich countries. More studies on the impact of non-migrainous headaches, largely of the tension type, are urgently needed for a full evaluation of the consequences of headache disorders.