According to the Centers for Disease Control, stroke is the third leading cause of death in the United States.

Nearly three-quarters of all strokes occur in people over the age of 65.

That means one quarter of them happen in people under the age of 65.

What about those in their twenties?

Lea Ann Heuser is 26 and three weeks ago had a major stroke.

Her symptoms started with a headache and numbness in her legs.

Heuser said, "I woke up in the middle of the night, the headache was getting a lot worse, and my husband with a little prodding took me to the Emergency Room at Methodist. They thought I had a migraine because I was getting nauseous. Then on Friday morning I had a CT Scan, I had a blockage causing hemorrhage a stroke and seizures. That was quite a day."

Heuser has some paralysis on both sides of her body... but is slowly regaining her strength.

She is expected to make a full recovery.

Doctors determined she has a genetic disorder that causes blood clots.