A vagal episode or vasovagal response also called a neurocardiogenic syncope
is a malaise mediated by the vagus nerve. When it leads to fainting, also known
as a "syncope", it is called a ...
Why the sight of blood might make you faint – and what you can do about it.
Feb 17, 2013 ... Fainting at the sight of blood may be a primitive reflex buried in our brains ... cuts
your arm off, the sight of blood or injury may cause you to faint.
Most people feel a bit uneasy when they see blood or have to get a needle.
However, for some people, seeing blood or needles causes them to faint or to
A blood phobia is a condition in which a person is likely to faint at the sight of
blood, the anticipation of physical injury, or the anticipation of an injection.
Sep 1, 2010 ... More importantly, medical experts believe fainting at the sight of blood probably
helped some of our ancestors survive some horrible things.
Oct 22, 2014 ... Fainting at the sight of blood is not an uncommon habit. So what causes it and do
you need to do anything about it?
www.ask.com/youtube?q=Passing Out at the Sight of Blood&v=-gPiV1eNS8Y
Oct 4, 2016 ... Josh explains the science of why people faint at the sight of blood. Learn more at
Mar 18, 2013 ... Getting dizzy and fainting at the sight of someone else's blood doesn't seem to be
the most, uh, evolutionarily appropriate response. How's that ...