New clues about how migraines are inherited

DNA sequence
DNA sequence. Photo: Getty Images

Common genetic variations may play a greater role in the onset, severity and heredity of migraines than previously thought, according to new research published today in the journal Neuron.

Why it matters: The cause of migraines remain elusive, but genetics is believed to play a role as 90% of people who affected by them have a family history of migraines. One in four U.S. households has someone with the disorder, which affects about 39 million Americans — about 90% of them are unable to work or function normally when they have one.