(CNN) - Having sex, drinking coffee and working out may cause blood pressure to spike and briefly raise the risk of a burst aneurysm in certain people, according to a new study out of the Netherlands.
Only about 2 percent of the population is believed to have an aneurysm, a balloon-like swelling in a brain artery that results from a weak spot in the artery wall. But while the overall risk of a rupture is small, even brief activities that raise blood pressure can temporarily boost the risk of aneurysm.
Coffee and vigorous exercise were the most commonly-noted aneurysm triggers, followed by nose blowing, sex, drinking soda, being startled and experiencing anger.
However, researchers said people should not stop drinking coffee or having sex. The study, which has been published in the journal Stroke, simply shows that the activities are triggers.