![heart attacks are worse in the morning](https://www.theolivepress.es/wp-content/uploads/2011/06/heart-attacks-are-worse-in-the-morning.jpg)
New study: Common heart irregularity linked to increased risk of dementia
A common irregular heartbeat known as atrial fibrillation (A-fib) may increase the risk of dementia, a new study suggests. Researchers found that people newly diagnosed