Depression is more likely to occur in people with migraines, but migraines are also more likely to develop in those who suffer from depression first. A new Canadian study reexamined this link in 15,254 people. They confirmed this association, but unlike in previous studies the researchers from Calgary discovered that this bi-directional relationship is symmetrical. That is, if you have migraines you are 80% more likely to develop a major depressive episode, but if suffer from depression first, you are only 40% more likely to develop migraines. They found that childhood trauma and stress may be a contributing factor to both conditions. The authors of the study discuss the fact that common genetic abnormalities may also predispose people to both conditions.
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