How can children suffer heart attacks and similar coronary diseases?

Problem from birth: The biggest reason children may have heart attacks is because of congenital defects in the coronary arteries. They may have abnormal takeoffs of the vessels or abnormal paths that they take.

They don't: The only condition where a kid would develop coronary artery disease like an older adult is progeria. This rare premature aging syndrome does have all the features of advanced age as adults & CAD is a common cause for their death in their teens. Kids can have other heart issues, but the origin and outcome are drastically different.