Waverley Health & Wellness

22/08/2025

01/08/2025

Think brushing your teeth is just about avoiding cavities and bad breath? Think again. A major study involving over 1,500 hospitalized adults found a striking connection between bedtime brushing and heart health. Those who skipped brushing at night, or didn’t brush at all, faced significantly higher risks of cardiovascular events and even death compared to those who brushed before bed.

The science behind this is eye-opening. Oral bacteria don’t just stay in your mouth. When you sleep without brushing, these microbes multiply and can enter your bloodstream, triggering inflammation throughout the body. Chronic inflammation is a well-known contributor to heart disease, stroke, and other serious conditions. In contrast, brushing at night helps clear harmful bacteria before they can do damage while you sleep.

Key findings from the study revealed that people who brushed only in the morning had notably worse outcomes. The group who brushed only at night had the best survival rates, with hazard ratios around 0.55 to 0.59. That’s nearly a 45 percent lower risk compared to non-brushers. Smoking, not surprisingly, made everything worse, especially for those who skipped brushing at night.

Brushing your teeth before bed may seem like a simple, even boring habit. But according to science, it could be one of the most powerful and affordable steps you can take to protect your cardiovascular health.

So next time you're tempted to crash without brushing, think of your heart, not just your teeth.

Follow our page for more powerful health insights backed by real research and practical habits that could add years to your life.

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