Blood thinners. may pull double duty for people with the heart rhythm disorder atrial fibrillation: New research suggests they help prevent dementia as well as stroke. Because atrial fibrillation increases the risk for stroke, people with the condition are often prescribed blood thinners (also known as anticoagulants) to prevent blood clots that can cause a stroke.
Atrial fibrillation also increases the risk for dementia. During the study, more than 26,000 of the 440,000 participants, all with atrial fibrillation, were diagnosed with dementia.