By A new study has revealed a strong connection between oral health and cardiovascular health, suggesting that caring for your teeth and gums might also protect your heart and brain.
According to findings published in Neurology Open Access, adults suffering from gum disease were more likely to show signs of white matter damage in the brain — an abnormality linked to cognitive decline and an increased risk of stroke.
Dr. Souvik Sen, the study’s lead researcher, explained that inflammation caused by gum infections could play a key role. “Gum disease is associated with a higher risk of inflammation, and inflammation is known to contribute to atherosclerosis and hardening of small blood vessels,” Sen said. These vascular changes can restrict blood flow to the brain and heart, leading to serious complications.
Gum Disease and Cavities Increase Stroke Risk
In a second study led by Dr. Sen and published in the same journal, researchers found that people with both gum disease and cavities were 86% more likely to experience a stroke than those with healthy mouths. “Having cavities and gum disease together increases your chance of a stroke or heart attack,” Sen noted.
The good news is that the risk drops dramatically with consistent oral care. Participants who practiced good dental hygiene — including brushing, flossing, and regular dentist visits — reduced their risk of stroke by as much as 81%, the study found.
The Science Behind the Connection
While the research does not confirm that poor oral health directly causes strokes or heart disease, it supports growing evidence that the mouth is closely linked to overall body health. Chronic oral infections may trigger systemic inflammation, which can damage arteries and affect blood circulation.
A Global Health Concern
According to the World Health Organization (WHO), around 3.5 billion people worldwide suffer from dental conditions such as cavities or gum disease. In the United States, data from the American Heart Association (AHA) shows that approximately 795,000 people experience a stroke each year — emphasizing the importance of preventive dental care.
Expert Advice
Health experts recommend maintaining a daily oral hygiene routine that includes:
- Brushing twice a day with fluoride toothpaste
- Flossing daily to remove plaque between teeth
- Regular dental check-ups and professional cleanings
- Limiting sugary foods and drinks that contribute to decay
Bottom Line
Taking care of your mouth could do more than keep your smile bright — it may help protect your heart and brain. By reducing inflammation and preventing gum disease, good oral hygiene might significantly lower your risk of stroke and heart disease.
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