We've known for some time now that depression and Migraine are frequently comorbid diseases -- occurring together, but neither causing the other.
Studies have shown that patients with depression have a higher prevalence of Migraine that patients without depression. Conversely, studies have shown that patients with Migraine have a higher prevalence of depression than patients without Migraine.
Now, research shows that Migraine and depression may share a strong genetic component. The research is published in the January 13, 2010, online issue of Neurology®, the medical journal of the American Academy of Neurology.
“Genealogical information has shown them all to be part of a large extended family, which makes this type of genetic study possible.” ~ Gisela M. Terwindt, MD, PhD, study author
For more information, see Migraine and Depression May Be Linked Genetically.