National BraveHearts Day is observed on April 28 to honor the strength and bravery of individuals affected by pediatric cancer, including children, their families, and loved ones. Founded by Amy and Jeremy Jacobs, who experienced their own struggles with their daughter's cancer diagnosis, the day aims to raise awareness and support for those fighting this illness. The Jacobs established the BraveHearts For Kids organization to provide free resources and assistance to families dealing with pediatric cancer. Typical customs include sharing the significance of the day on social media and encouraging others to recognize the courage of pediatric cancer fighters. The day serves as a reminder of the challenges faced by these brave warriors and the importance of community support.