In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series or any expression; it is usually a number, but may be any expression. In the latter case, the variables appearing in the coefficients are often called parameters, and must be clearly distinguished from the other variables. For example, in.
Vasovagal syncope is a common cause of fainting. The vagus nerve is overstimulated and causes the body's blood vessels to dilate and the heart to slow down. This anti-adrenaline effect decreases the ability of the heart to pump blood upward to the brain against gravity. Without blood flow, the brain turns off.
Syncope (say SING-kuh-pee) refers to a sudden loss of consciousness that soon passes. Syncope may be the first sign that you have an arrhythmia. Passing out can cause a serious injury. For example, passing out while climbing the stairs or while driving can cause serious harm.