Despite that it is commonly accepted that migraine is a disorder of the nervous system with a prominent genetic basis, it is comorbid with a plethora of medical conditions. Several studies have found bidirectional comorbidity between migraine and different disorders including neurological, psychiatric, cardio- and cerebrovascular, gastrointestinal, metaboloendocrine, and immunological conditions. Each of these has its own genetic load and shares some common characteristics with migraine. The bidirectional mechanisms that are likely to underlie this extensive comorbidity between migraine and other (...) diseases are manifold. Comorbid pathologies can induce and promote thalamocortical network dysexcitability, multi-organ transient or persistent pro-inflammatory state, and disproportionate energetic needs in a variable combination, which in turn may be causative mechanisms of the activation of an ample defensive system with includes the trigeminovascular system in conjunction with the neuroendocrine hypothalamic system. This strategy is designed to maintain brain homeostasis by regulating homeostatic needs, such as normal subcortico-cortical excitability, energy balance, osmoregulation, and emotional response. In this light, the treatment of migraine should always involves a multidisciplinary approach, aimed at identifying and, if necessary, eliminating possible risk and comorbidity factors. (shrink)

Writing about the history and politics of epidemics and pandemics requires stepping into a historiography that is expansive, transnational, and slotted into specific historical periods. This essay considers the main debates in this expansive historiography and highlights the strengths and limitations of dominant historiographical approaches to the study of epidemics and pandemics. This essay also interrogates the framing of three thematic periods, or categories, commonly identified by historians and social scientists in analyses of epidemics and pandemics: categories of “colonial health,” (...) “international health,” and “global health.” As this essay underscores, scholarship often analyzes epidemics and pandemics through overlapping and complex historical temporalities involving colonization, decolonization, and globalization. However, this approach is often constrained by the limitations of existing archives and the overwhelming focus of published scholarship on dominant institutions, scientific and political figures, and specific disease outbreaks that are commonly associated with categories of “colonial health,” “international health,” and “global health” from the late nineteenth to the present. As a result, scholarship may include linear narratives that flatten or generalize the legacies of epidemics and pandemics. The links between pathogens and pathologies are not linear, however, and colonial structures of power, disease tropes, and surveillance doctrines often persist across time and space. This essay ultimately seeks to challenge and complicate these dominant framings and categories from within. This approach highlights the connectedness—and complex continuities and discontinuities—in the political, economic, social, and scientific perceptions of and approaches to epidemic and pandemic risks. (shrink)