A Heart Risk in Drinking Water

(AP Photo)
(AP Photo)
(AP Photo)

(New York Times) – Ana Navas-Acien can’t quite recall the moment when she began to worry about arsenic in drinking water and its potential role in heart disease.

Perhaps it was when she read a study suggesting a link among people in Bangladesh.

And a similar study in Taiwan. And in Chile.

Several years ago, Dr. Navas-Acien, an associate professor of epidemiology at the Johns Hopkins Bloomberg School of Public Health, decided to see if similar links could be found in the United States.

She found an ideal group — a stable population relying mainly on private well water — in an ongoing study of Native Americans in the Dakotas and the Southwest. Known as the Strong Heart Study, the project had tracked the lifestyles and environmental exposures of more than 4,000 people since the late 1980s.

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