
Researchers performed a genetic analysis of ancient teeth bacteria to find the enormity of changes that have taken place in oral bacteria due to alterations in the diet and behavior from Stone Age to modern age.
A study of the DNA preserved in calcified bacteria on the teeth of ancient human skeletons has pointed out some of the negative health consequences of the change in diet and lifestyle from the Stone Age to the modern era and also the impact of food manufacturing in the Industrial revolution.
"This is the first record of how our evolution over the last 7500 years has impacted the bacteria we carry with us, and the important health consequences," says study leader Professor Alan Cooper, ACAD Director.
Source: Medindia
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