The New York Post reports, “A new study published in Frontiers in Oral Health suggests that a simple mouthwash could determine a person’s chances of developing heart disease.” Researchers at Mount Royal University in Canada “tested a simple oral rinse to see if signals for cardiovascular disease can be linked to levels of white blood cells…in healthy adults.” The study included “28 non-smokers between the ages of 18 and 30 with no comorbidities” and “found that high levels of white blood cells were associated with compromised flow-mediated dilation, an early sign of poor arterial health.”