Enzymes are fundamental to all life. They are in every living thing. Enzymes are substances that make life possible. They are needed for every chemical reaction that occurs in the body. Without enzymes no biological activity would occur. Enzymes are protein catalysts necessary for metabolic functions.
According to experts, over 900,000 Americans are due to die of heart- related disease in 2005. Many of the 900,000 will die of a heart attack while experiencing a sudden rise in excitement and tension — as happens when watching a dramatic sports event like the Super Bowl or World Cup.