Picker Erika Nicolas Garcia, 18, fills her pail at a blueberry farm near Hillsboro, Ore. Anna King/Northwest Public Radio hide caption

itoggle caption Anna King/Northwest Public Radio

Regular consumption of blueberries, such as these found at Butler's Orchard in Maryland, may prevent heart attacks in middle-aged women. Maggie Starbard/NPR hide caption

itoggle caption Maggie Starbard/NPR