In particular, the advent of processed, wheat-based foods and a more settled life were thought to be big contributors.
In Poland, the first agricultural societies emerged some 7,000 years ago.
The archaeologists were, therefore, surprised to find a form of tooth decay known as carious lesions (caries) was already an issue thousands of years earlier among hunter-gatherer communities.
These people would have eaten primarily berries, fruit, honey, as well as hunted prey such as fish.
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