Migraine attacks may be triggered by a variety of factors.
"An avalanche can be triggered by a single person," he added.
Thunderstorms can be triggered by a cold front that moves into moist, unstable air.
Last month, a study at the University of Wisconsin was released suggesting that obesity may be triggered by a virus.
Migraines can be triggered by a variety of factors; Mrs. Bachmann has her own theory about her condition.
Lupus is not contagious and can be triggered by a number of variables, such as trauma or pregnancy.
The first two years would be guaranteed, and a third would be triggered by a combination of appearances and games finished.
"The US faces the prospect of an institutional failure, which might be triggered by a growing mass of real-life problems".
Frailty is not only the presence of multiple conditions, often including dementia, but a state of vulnerability in which rapid deterioration can be triggered by a small event.
One particularly aggressive form of epilepsy, which was once thought to be caused by vaccinations, was shown by Berkovic and Scheffer to be triggered by a gene mutation.
On the right, there is precisely the perplexity that you would expect to be triggered by a measure so brazenly at odds with standard Conservative ideology.
