Those who suffer from nausea-inducing monster headaches are significantly more likely to become depressed, according to a new study published in the journal Headache. The reverse may also be true, researchers say: People with clinical depression are more likely to develop migraines.

Researchers at the University of Calgary analyzed records of 15,000 people between 1994 and 2007 from the Canadian National Population Health Survey.

The study found that those who reported migraines at the beginning of the study were 80 percent more likely to become depressed, compared to people without the headaches. Depressed survey participants were found to be 40 percent more likely than the non-depressed to develop migraines.

Researchers believe there is a link between depression and migraines.

“Something is going on here,” said lead author Geeta Modgill, who suggests that both ailments may raise the risk for the other condition.