Do We Need to Brush Our Teeth?

Many health conditions we contemporary people consider to be inevitable ills are actually not ordinary occurrences in human presence –ordinary, but not ordinary. Consider acne vulgaris, a skin disease affecting more than 90 percent of this western world, along with malocclusion, a frequent misalignment of the upper and lower jaw. Only quite lately in our evolutionary history did these disorders became commonplace. One of hunter-gatherers, they are infrequent.2, 4, 15 Scientific evidence…

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