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A brief history of toilet hygiene has summarized a report from The British Medical Journal that examines our oldest "anal cleansing rituals". The toilet hygiene piece reminds us that practices considered routine in one place or time may be unknown elsewhere or elsetime. The first known reference to toilet paper in the West does not appear

Our ancestors had healthier teeth than we do today

A genetic study of bacteria found on the teeth of 34 ancient skeletons in Northern Europe has revealed that our ancestors had healthier teeth than we do today. According to the research, the composition of oral bacteria initially changed markedly with the introduction of farming around 7500 years ago, and deteriorated