5 Men's Hygiene Facts You Won't Believe

4: Not Flossing Can Kill You

Let's be honest -- we all know we should be flossing daily, but few of us actually do. However, improving your flossing habits could improve your outlook when it comes to living a long, healthy life.

Studies show a healthy mouth may equal a healthy heart, and gum disease in particular seems especially related to heart disease [source: WebMD]. These studies indicate you're twice as likely to have heart disease if you have periodontal disease.

Artery plaque and mouth plaque are entirely different despite both being called "plaque." However, the connection seems to be that higher levels of harmful bacteria in the bloodstream cause problems in both the mouth and the arteries. Therefore, the presence of either kind of plaque is a strong indicator that the other type is present as well.

Next: Why your scent may be an advertisement for your immune system.

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