AFib, or atrial fibrillation, a problem with the way the heart beats, is the most common cause of stroke in both men and women. But some recent studies have shown it might be even more dangerous for women.
AFib is caused when the atria, the two top chambers of the heart, fibrillate (or beat) irregularly or too quickly. Because the chambers don’t contract strongly, blood is allowed to pool in the heart. This increases the chance of clotting.
Men are more likely to get AFib than women, but it’s the most common heart rhythm abnormality in women.