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.
If the syncope is prolonged, it can trigger a seizure. You may suffer from a simple fainting spell due to anxiety, fear, pain, intense emotional stress, hunger, or use of alcohol or drugs. Most people who suffer from simple fainting have no underlying heart or neurological (nerve or brain) problem.
The most common cause of fainting is a sudden loss of blood flowing to the brain. 1  This may be a result of any, or a combination of, the following: 2  A reduction in the amount of blood being pumped out of the heart. 3  Certain drugs such as digitalis, calcium channel blockers and others.