  Multiple sclerosis (MS) is the most common disabling neurological disorders
in the young adults. In spite of many researches, the cause of the disease has
remained mainly not understood. All evidences indicate that environmental risk
factors play key roles in this disease etiology. Various hypotheses have been
posited up to now on the presumed disease risk factors, however, they were not
successful in explaining all MS features. The aim of this article is to
introduce the concept of the newly proposed "geomagnetic disturbance hypothesis
of MS" and its abilities in explaining the special features of the disease to
encourage medical geologist and other biomedical researchers to contribute to
this area of research.
