A new study suggested that people who drink more than safe limit alcohol daily, are at high risk of the unhealthy presence of bacteria in their mouth. Scientists found a presence of ‘bad’ bacteria in the mouths of chronic alcoholics. The amount of ‘bad’ bacteria was much higher in comparison with non-alcoholic people. These ‘bad’ bacteria can be responsible for gum diseases, cancer, and heart diseases.

The study is a recent outlook of the factors which influences the human “microbiome” the millions of bacteria’s that are present and growing in the body. Many studies are based on a relation to the growth of microbiome and risks associated with various diseases. Generally, these studies have explored diversities of the microbiome. Likewise, the current study suggests that imbalance in the mouths microbiome increases risks of cavities, high microbiome can be responsible for cancer, and infection of the digestive tract.

The researchers found causes by high growth of the microbiome and they found that the drinking habits are the most probable reason for the significant growth. A team leader of the study, Ahn said that daily drinking habit is a major reason for a huge growth of microbiome in the mouth. The team observed more than 1,044 samples of the adults in the US, those were part of two cancer studies. Most of them were moderate drinkers (nearly 59 percent), 15 percent were chronic drinkers, and remaining were non-alcoholic.

Chronic is considered as more than recommended limit like one drink each day for women and two for men. These alcoholics found the less amount of Lactobacillales, which is good for the human health, but the large presence of ‘bad’ bacteria such as Bacteroides, Neisseria species, and Actinomyces. Yiping Han, a professor in dental medicine and microbiology at Columbia University of New York claimed that these oral microbiomes are influenced by the many factors other than alcohol including the way of brushing and diet.

Ahn said that her team members have considered the factors such as age, race, education, smoking, and weight. She also suggested exploring the topic and further studies regarding the drinking, oral care, and associated diseases.

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