Teen with congenital heart disease delivers knit hats to babies for 'Little Hats, Big Hearts'

It's American Heart Month and February 7 kicks off Congenital Heart Defect Awareness Week.

At Children's National Health System, they celebrated in a very special way Thursday with their "Little Hats, Big Hearts" campaign event.

During the event, 14-year-old Kaelyn Graham, an American Heart Association volunteer who has congenital heart disease, helped deliver 116 red knit hats to babies in the cardiac intensive care unit to raise awareness about and to show support for congenital heart disease.

Graham helped knit the red hats, according to the hospital.

The campaign originally started in Chicago with 300 knit hats in 2014. Since then, "Little Hats, Big Hearts" has grown significantly with over 200,000 knit hats delivered to 40 states in 2018.

This year, over 1,600 hats were delivered to hospitals in the D.C. area.