Age, obesity, height, and sleep apnea are among the risk factors for AFib, reports US News & World Report.
Age is the most important risk factor for atrial fibrillation; older adults are more likely to get AFib. Obesity is the most important modifiable risk factor for atrial fibrillation. For every increase of five units of body mass index, the risk of atrial fibrillation increases by 10 to 30 percent. Obstructive sleep apnea is also associated with higher risk for AFib.