New research suggests the culprit might be the amount of bacteria in the mouth. An abundance of bacteria in the mouth may break down nitrates more quickly, causing migraines. The study's authors hope these findings will help link existing cardiovascular research with migraines. The study's authors say they still need to determine whether the bacteria are a cause or a result of migraines, or are indirectly linked in some other way. For now, Zitney says, the research suggests that some migraines could one day be treated by controlling the bacteria in our mouths.

Source: CBC News October 19, 2016 20:37 UTC