It was a cloudy day here in the Bluegrass but that didn't stop hundreds of people from heading outdoors to help a good cause. It's the American Heart Association's largest fundraiser in the area. More than 25,000 people laced up their sneakers and took part in the Central Kentucky Heart Walk at Commonwealth Stadium Saturday. Heart disease is the number one killer of men and woman in Kentucky. One out of every three Kentuckians are affected by heart disease. To stay heart healthy, the AMA recommends that people exercise 30 minutes a day.