The Presidential Daily Brief

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    Could Breast Cancer Risk Depend on Where You Live?

    My grandmother fought breast cancer for six years. Since 1970, the number of cases in the U.S. has increased by more than 200 percent, but known risk factors explain fewer than half of these cases. Research suggests that other factors might also be playing a role, from environmental ones like air pollution to social ones like racism. This terrible disease needs to be eradicated; it runs in my family — I’ve seen it firsthand — so I’m always hungry to learn more about it.

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