First U.S. case of polio in a decade reported in New York: Rockland County officials say the young adult was not vaccinated and they have since opened polio vaccine clinics to encourage shots. Read more

As searing heat stretches across much of the United States, watch out for heat illnesses: Experts offer advice on how to stay cool and avoid heat stroke. Read more

Potassium-rich bananas a boost for women’s heart health: Avocados and salmon also are high in potassium, helping counteract the damage of salt in the diet and lowering blood pressure, researchers said. Read more