Killing weeds with toxic chemicals might be making farmers clinically sad.
A study of more than 700 French farmers and farmworkers found that those who used herbicides were more likely to be treated for depression than were those who avoided the stuff.
[W]hen the researchers took into account factors linked with depression, such as age and cigarette smoking, they determined that those farmers exposed to weedkillers were nearly two and a half times as likely to have had depression.
Furthermore, farmers who had greater exposure — either more hours or longer years using herbicides — also had a greater chance of having depression than farmers who had used weedkillers less.
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