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 is the proper medical terminology for a sudden loss of consciousness, or fainting. While the underlying causes for syncope vary, the phenomenon is relatively common. Chances are that every person will experience an episode of passing out with little or no warning at some point during his or her life. The trigger for syncope can be something as simple as a sudden scare or a shock.