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The chemical footprint of tobacco left in our bones
By comparing samples, they noticed significant differences in the molecular composition of the bones. Traditionally, archaeologists identified smokers by analyzing teeth, looking for marks left by ...
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The teeth and bones that hold the key to this century’s worst chemical weapons attack
Wael Soulaiman picks his way carefully around the edge of the three strips of hardened dirt, each about the length of a cricket pitch and only a little wider. To the ignorant observer, they do not ...
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Why Human Teeth Can’t Heal: The Science Behind Their Unique Structure
Whether it's a cut on the skin or a broken bone ... lacks this ability: our teeth. Once damaged, human teeth cannot heal themselves. But why is this the case? The Composition of Teeth To understan ...