Alzheimer’s risk is more associated with DDT than APOE e4

A Persistent Pesticide Is Linked to Alzheimer’s Risk June 2026

Dr. Greger

  • "When it comes to identical twins with the exact same genes, if one gets Alzheimer’s, the other usually does not. So, we have to think about all the other contributing factors beyond just genetics."*" Those patients with the highest levels were at about four times the odds of having dementia from Alzheimer’s."
  • "DDT was used extensively in the United States from the 1940s through the early 1970s. At its peak, we were churning out about 180 million pounds a year. And it is still in our bodies to this day, contaminating the bloodstreams of more than 90% of Americans, with DDE—the pesticide linked to quadrupling the odds of Alzheimer’s —found at the highest levels of all."image

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