Pesticide Use and Cancer Risk Rise Together Across America’s Heartland

Lisa Lawler wasn’t surprised when diagnosed with breast cancer in 2025. Her mother had breast cancer and died in 2016. It seemed like cancer had become a common diagnosis for many of her neighbors and friends.

“With how many people seem to get cancer in our community, you just assume you will get it,” said Lawler, who lives in rural Hardin County, Iowa. “But no one really talks about what’s causing it.”

After 10 rounds of radiation and a surgery to remove the tumor, Lawler’s cancer was in remission. Last year, she took a test to determine if her cancer was likely genetic, meaning a high chance of recurrence, which could lead her to have her entire breast removed.

She was surprised by the results.