Word: blood
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...body's supersonar for detecting any foreign and potentially harmful proteins. To signal the need to annihilate these invaders, IgE attaches like antennae to the surface of cells that release histamines and other inflammatory agents. In mild cases, the result is a rash and hives. In others, blood pressure drops and fluid builds up in tissues, leading to swelling. Airways can constrict, triggering coughing and eventually respiratory distress and even death. Once a massive IgE cascade is activated, only a shot of the hormone epinephrine, a.k.a. adrenaline, can stop a hypersensitive immune system from killing the body...
Even the act of diagnosing allergies has become a source of confusion. Increasing reliance in recent years on a blood-based test instead of the classic skin-prick screening means that not just allergists but also pediatricians can find out if children are carrying IgE antibodies for certain foods. But some positive tests may be false alarms that lead families to spend a lot of energy avoiding common foods that their kids can actually tolerate...
VASODILATION Blood vessels become leaky, lowering blood pressure...
...fellow Lowellians, no more! Let us take back our Dining Hall and cast the money-changers out of our temple. Gather your pitchforks, for tonight we shall paint the Bell-tower red with the blood of the Lowell House Opera...
...Remember Blood Diamond? Remember how all the bad guys died? In reality, most of them not only survived, they went free. As Sierra Leone's civil war wound down in 2002 after 11 years of fighting marked by some of the most brutal human-rights abuses in history, much of that fueled by competition over the country's diamond fields, the leaders of the Revolutionary United Front (RUF) and other militias, as well as their sponsor, Liberian President Charles Taylor, negotiated themselves an amnesty...