Word: triggered
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...back as the 1600s, the prominent English physician Thomas Willis suggested that headaches are caused by a rapid increase in the flow of blood to the brain. He theorized that the suddenly bulging blood vessels put pressure on nearby nerves and that these in turn trigger the pain. A variation on Willis' idea became the favored explanation for the cause of migraines. (An important network of blood vessels at the base of the brain bears Willis' name...
What seems clear, however, is that the brain of a migraineur (as sufferers are called) is primed to overreact to all sorts of stimuli that most people can easily tolerate. "The brain receives input from a wide variety of triggers--stress, hormones, falling barometric pressure, food, drink, sleep disturbances," says Dr.David Buchholz, a neurologist at the Johns Hopkins University School of Medicine in Baltimore, Md. "Each of us has hisown stack of triggers and his own personal threshold at which the migraine mechanism activates. The higher the trigger level climbs above the threshold, the more fully activated the migraine system...
...launched a new class of drugs called triptans that provide most migraineurs substantial relief. Like the painkillers before them, the triptans deliver their best results when taken early in an attack. Unfortunately, their effect is often temporary (drug companies are working on longer-lasting versions). Also, the drugs can trigger certain cardiovascular side effects, which means they should not be used by patients who have an increased risk of heart attack or stroke...
...years, defending against suicide attacks relies ultimately on the conscience of the bombers. Israeli intelligence believes women receive far less training and preparation for their suicide missions than do men, ranging from weeks to days; on several occasions, would-be female terrorists refused at the last second to trigger the explosives. Berko says, "One woman prisoner told me how she was supposed to blow herself up in a crowd of Israelis but saw a woman pushing a baby in a carriage. That baby reminded her of her nephew, and she couldn't go through with it." Only by building...
...Critics in Virginia and elsewhere are now saying the state should change its laws to make cases like Cho's trigger a report to the state and federal databases. They point to federal regulations issued by the U.S. Bureau of Alcohol, Tobacco and Firearms that bar gun sales to individuals who are categorized as "mental defectives," guidelines that would have kept Cho from buying his Glock 19 last month...