Mercury: The Poison Rebranded as Medicine, Fashion, and Profit for Centuries
In 1693, Isaac Newton spent months unable to sleep, eating poorly, and writing letters accusing friends of harming him. He had worked with alchemy for years, heating metals with mercury, lead, and arsenic. In 1979, two Royal Society papers examined samples of Newton’s hair and found very high mercury levels. The evidence does not prove that mercury caused his entire crisis, but it shows prolonged contact with a ne...