What triggers a vasovagal syncope episode?
A fainting response often occurs in a number of situations such as during emotional circumstances, including medical or dental procedures.
When someone is in pain or during or after a meal if someone has not eaten for a while.
Another trigger for a fainting spell tends to be after a long period of standing still, such as in a queue or at a reception.
Fainting often happens in warm surroundings, after exercise or when you have not had enough rest.
During periods of illness, nausea or fever, fainting spells can also be common.