People who had been exposed to the pesticide DDT were more likely to have Alzheimer's disease than those with no traces of the chemical in their blood, researchers found in a new study.The observation doesn't prove DDT causes Alzheimer's, or that people who have been exposed to the chemical will develop the degenerative brain disease, they said.
DDT exposure more common in people with Alzheimer's: study
But in the complex picture of Alzheimer's - which has many potential genetic and lifestyle contributors - this may be one more piece to consider, according to lead author Jason Richardson.
If there was a single environmental factor that was contributing to any (neurologic) diseases . . . that kind of thing is very easy to find. That's not what we're saying here," said Richardson, from the Rutgers Robert Wood Johnson Medical School in Piscataway, New Jersey.
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