Word: triggers
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...American G.I., peacekeeping's paradox is plain. Shooting to kill--something a soldier has practiced since basic training--is the best thing he can do in combat. But it's the worst thing he can do on a peacekeeping mission because an itchy trigger finger can spark civilian casualties, renewed warfare and national embarrassment. Since the cold war, which Russian and U.S. troops spent pacing in their garrisons awaiting World War III, military prowess has become a more subtle discipline. But subtlety has never been the U.S. military's strong suit, and no other modern military mission is as vexing...
...Carolinas Medical Center in Charlotte, N.C., seems to have overcome the most formidable challenge of such a procedure--long-term limb rejection. While immune-suppressant drugs have improved the success rate of all kinds of organ transplants, the arm is composed of several different tissues, which trigger different degrees of rejection reactions. Doctors have been fighting them all with an intensive, three-pronged drug attack that includes steroids, which Scott is required to down every day for life...
...quickly argued that pesticides in food might have a hormone-like effect on children's bodies. Many pediatric endocrinologists, however, believe the suspected change has more to do with the extraordinary increase in childhood obesity over the past two decades. Fat cells produce leptin, a protein known to help trigger puberty. With more fat cells churning out leptin, earlier puberty would seem highly likely...
...Eastwood; he knows. As a sleuth in True Crime and In the Line of Fire, and as a career criminal in Unforgiven and Absolute Power, the actor-director has dramatized the perils and grace of something we all do (if we're lucky): age. His breath is short, his trigger finger is arthritic, and the young women in his life are more likely to be his daughters or his bosses than a hot amour. Yet even at 70, he's still Clint, which means he's about the best any of us can hope to be in our reclining years...
Renova's success inspired something of a rush on vitamin A. But instead of using tretinoin--which would trigger intense FDA scrutiny, not to mention a patent-infringement lawsuit--most over-the-counter skin products contain other forms of vitamin A. Although these compounds, technically known as esters, are not biologically active, the theory is that certain enzymes in the skin would convert at least some of them into tretinoin...