HOUSTON — February is American Hearth Health Month and we're putting the spotlight that impacts about one in four adults, even if they don't know they have it. "Twenty to thirty percent of the world ...

In the womb, fetuses have an opening in the upper chambers of the heart known as a foramen ovale. While the opening is supposed to close naturally after birth, for many it never does. That's when it's ...

In adults under age 50, strokes caused by clots are on the rise — and many happen without a clear link to a traditional cause such as high blood pressure. A new study suggests the underlying reason ...