Vote Here Now. Below is Newsmax's list of the 100 most influential business leaders in America. This list takes into account each candidatesâ net worth, the companyâs brand value, and the positions in both their relevant industries as well as the global business market.ote Here Now. Below is Newsmax's list of the 100 most influential business leaders in America. This list takes into account each candidatesâ net worth, the companyâs brand value, and the positions in both their relevant industries as well as the global business market.
What Causes an Arrhythmia? An arrhythmia can occur if the electrical signals that control the heartbeat are delayed or blocked. This can happen if the special nerve cells that produce electrical signals don't work properly. It also can happen if the electrical signals don't travel normally through the heart.
Problems can cause abnormal heart rhythms, called arrhythmias. There are many types of arrhythmia. During an arrhythmia, the heart can beat too fast, too slow, or it can stop beating. Sudden cardiac arrest (SCA) occurs when the heart develops an arrhythmia that causes it to stop beating. This is different than a heart attack, where the heart usually continues to beat but blood flow to the heart is blocked. There are many possible causes of SCA.