A large new study finds allergies that bring on wheezing, sneezing and watery eyes are often paired up with heart problems.
But researchers stress the report in the American Journal of Cardiology does not prove allergies actually cause heart disease.
The association was mainly seen in women younger than the age of 50.
Researchers speculate that the inflammation that comes with allergies may lead to the thickening of artery walls and eventually heart disease.
It could also be that some people carry genes that are linked to both allergies and heart disease.