Recent research has uncovered a fascinating connection between oral hygiene practices, such as brushing and flossing, and the risk of developing cardiovascular diseases. According to experts, maintaining a clean mouth may significantly contribute to overall health and longevity.

Studies have long indicated that individuals suffering from dental issuessuch as gum disease, cavities, or missing teethare at a heightened risk for various serious health conditions. These include not only cardiovascular disease but also ailments like cancer, diabetes, obesity, rheumatoid arthritis, and even Alzheimer's disease. Judith Jones, a respected professor at the University of Detroit Mercy School of Dentistry, explains, "I've been in this business for over 50 years; centenarians tend to have more teeth than those who do not live as long." This observation points to a deeper connection between dental health and longevity.

Jones acknowledges that the reasons behind this correlation are complex and not straightforward. For example, losing teeth can have detrimental effects on an individual's self-esteem and overall quality of life. People who feel self-conscious about their appearance may avoid social interactions and struggle to consume nutritious foods that are harder to chew, such as nuts, vegetables, and lean meats. These lifestyle changes can create a cycle that exacerbates health problems.

Moreover, emerging research suggests that the microbes inhabiting our mouthsthe oral microbiomemay significantly impact our overall health. As people age, studies have indicated that those who retain more of their natural teeth are more likely to enjoy a longer life.

In recent discussions surrounding longevity, notable figures such as tech CEO Bryan Johnson and neuroscientist Andrew Huberman have been vocal advocates for the importance of oral health. Johnson recently shared a comprehensive nine-step oral health protocol in his newsletter, emphasizing practices like tongue scraping and the use of tea tree oil aimed at preventing chronic diseases.

Subsequently, Huberman featured an entire episode on his popular podcast, "Huberman Lab," dedicated to exploring the potential connections between the oral microbiome and physical as well as mental health. Further capturing the attention of health-conscious consumers, the industry newsletter Fitt Insider reported on the emergence of microbiome-focused products in the booming $55 billion oral care market. Innovations include prebiotic toothpaste tailored to the specific microorganisms present in an individual's mouth.

According to market research conducted by Mintel, sales of oral care products in the United States surged by 6.3% between 2023 and 2024, rising from $10.8 billion to $12.2 billion. This growth is indicative of a broader trend in personal health investments, mirroring the global digestive health market, which is projected to reach an impressive $71.95 billion by 2027, an increase from $37.93 billion in 2019, as noted by Fortune Business Reports.

The link between poor oral hygiene and a heightened risk of various chronic diseases is becoming increasingly clear. The mouth microbiome, much like the gut microbiome, is home to both beneficial and harmful microorganisms, yet functions differently. A healthy gut microbiome is characterized by a diverse array of microbes associated with numerous health benefits, including a robust immune response and enhanced mood. In contrast, a healthy oral microbiome is relatively sparse.

Johnathon Baker, an assistant professor at Oregon Health and Science University who specializes in the oral microbiome, explains that regular brushing and flossing essentially reset the oral environment, preventing harmful microorganisms from establishing themselves and proliferating. He likens the oral microbiomes ecosystem to a landscape recovering after a volcanic eruption: initially barren after a thorough cleaning, it gradually becomes populated by a variety of microbial species. However, if oral hygiene is neglected, more harmful bacteria can proliferate and lead to infections.

According to Baker, advanced species of these microbes can infiltrate the bloodstream through the gums, particularly when gum disease is present. Once in the bloodstream, these bacteria can travel to various parts of the body, potentially leading to inflammation and damage in critical areas, such as the brain, heart, and even tumor sites. Research has indicated that bacteria associated with gum disease are found in the brains of Alzheimer's patients, in the tumors of colon cancer patients, and in the heart tissue of individuals with cardiovascular disease. Despite the compelling evidence, Baker notes that the exact role these microbes play in chronic illnesses is still being explored.

Studies have suggested a significant link between proper oral hygiene practices and a lower risk of cardiovascular disease. One particular study indicated that flossing just once a week might reduce the risk of ischemic stroke by over 20%. A comprehensive review published in 2019 also highlighted a strong correlation between periodontal disease and cardiovascular issues, reinforcing the notion that oral health is critical to overall wellness.

Looking towards the future, Baker believes that as our understanding of the oral microbiome evolves, it may lead to breakthroughs that could greatly enhance our overall health.

In practical terms, Jones emphasizes the importance of daily oral hygiene routines. She recommends that individuals brush their teeth thoroughly at least once a day, with most dentists advising for twice daily brushing. She notes that part of this recommendation is to ensure that people effectively clean their teeth at least once, while the other part is to encourage fresher breath. Flossing is equally essential; it reaches the areas between teeth and gums where disease often begins.

When it comes to selecting floss, Jones suggests simplicity. While some people may turn to water jets for cleaning, she remains skeptical about their effectiveness. Baker concurs with the emphasis on flossing, recounting how witnessing severe cases of periodontal disease during his studies changed his personal habits. He now prioritizes flossing daily, viewing it as a vital component of maintaining his health.