Like many things, agricultural chemicals have an unknown effect on human biology. The safe minimum dose is unknown. The Imperial Valley of California has a high incidence of carcinoma of the pancreas, for example. The case currently before Monsanto/Bayer is due to chronic high exposure. For example it was very difficult to prove that cigarette smoke was a direct cause of lung cancer. To me it seems best to avoid such things as much as possible. The healthier we are, the faster we go in the short term, and the better we age in the long term.
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