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.
Cleveland_Clinic_Host: Syncope -- also called fainting, blacking out, or passing out -- is a sudden loss of consciousness, followed by a fall from a standing or sitting position. It is a condition that is caused by a decrease in blood flow to the brain. Blood contains oxygen, so when blood flow to the brain decreases, oxygen to the brain also decreases. Certain heart or brain conditions and a sudden change in position may cause syncope. Signs and symptoms include light-headedness, dizziness, cold sweaty skin, and feeling more tired than usual.