A team of scientists has shown for the first time that nicotine residue can be extracted from dental plaque on the teeth of ancient tobacco users. Their research provides a new method for determining who was consuming tobacco in the ancient world and could help trace the use of tobacco and other intoxicating plants further back into prehistory.

Read more: http://bit.ly/2G1Z7ko
Source: Science Daily

2018-03-22T15:41:29+00:00