An important aspect of care is CPR by bystanders, which can lead to a double or quadruple increase in the survival rates of cardiac arrest victims. However, there are gaping disparities among the CPR rates administered by bystanders, varying between 5%–70%. In the UK between 30% to 40% of out-of-hospital cardiac arrests receive bystander CPR. It is important that everyone knows basic CPR as it may just save your loved one’s life. I would encourage all readers of this website to learn CPR.