Athletes are often considered models of fitness, but, the truth is that sudden cardiac arrest can strike without warning. Each year, apparently healthy athletes collapse during competitive games and never regain consciousness, leaving families and communities in shock. Understanding the causes, signs, and ways to prevent sudden cardiac arrest (SCA) https://www.diigo.com/item/note/b2knr/m5v0?k=1395edae29f825859045b64ef68d3203