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.
Causes of Faint, Fainting Spells, Pass Out, Passing Out, Feeling Faint, Syncope Symptoms. Feeling faint at times and afraid you may even pass out? Fainting spells or feeling faint is caused by not enough oxygen getting to your brain. Passing out for a very brief period, coupled with a quick recovery, is medically termed syncope. And having a syncope moment will suddenly happen at some point in the lives of about a third of the population. Fainting or passing out can even happen to those in good health. An isolated âpass outâ event is typically nothing to worry about. Itâs those repetitive fainting episodes that require further health investigation. Before you fainted, you probably experienced some of these symptoms: nausea.