How our solar system was born. 9 May 2016. Discover how a giant interstellar cloud known as the solar nebula gave birth to our solar system and everything in it.
Most deaths due to cardiac arrest are in older adults, particularly those with coronary artery disease. Cardiac arrest is the leading cause of death in young athletes, but the incidence of it is unclear. Perhaps 1 in every 50,000 sudden cardiac deaths a year occurs in young athletes.
1 Heart attack: A cardiac arrest may be caused due to blockages in a coronary artery. 2  Such clogging may occur abruptly and stop the flow of blood to the muscles of the heart, thereby damaging it. 3  Some parts of the cardiac muscle system, or sometimes all parts, may not get adequate amounts of oxygen-rich blood.