I would consider these two young boys true heroes.
7 year-old Grayson and 9-year-old Kian Wu of Canada were at their grandma’s house and noticed something was wrong when they called out for her to bring them a snack and she didn’t respond. When they went to find her, she was laying down on a couch unconscious. What they didn’t know was that she had just suffered a massive heart attack and was in cardiac arrest.
Luckily the boys had recently learned how to perform CPR from their mom so they knew exactly what to do. They first called 911 and then began to perform CPR until paramedics arrived.
Their grandmother later woke up at the hospital and is now home making a full recovery!