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.
7. Overstimulation of the vagus nerve is the most common cause of fainting. If you tremble or get queasy at the sight of blood or while getting a flu shot, youâre not weak; youâre experiencing âvagal syncope.â Your body, responding to stress, overstimulates the vagus nerve, causing your blood pressure and heart rate to drop.