Word: clusters
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...about how many warheads each missile can contain. Therein lies a huge advantage for the U.S., at least for now. Since the U.S. has missiles that carry up to ten independently targeted warheads (MIRVs) and these systems are far ahead of the Soviet multiple warheads, which fall in a cluster but cannot be individually directed (MRVs), the U.S. maintains an overwhelming edge of 5,700 to 2,500 in warheads...
Equally debilitating are cluster headaches, which strike their victims repeatedly for relatively short periods. A siege of intermittent pain can last several months. These headaches, which usually affect one side of the head in much the manner of migraines, are seven or eight times more likely to afflict men than women...
...John Graham, head of the Headache Research Foundation at Boston's Faulkner Hospital, believes that personality may be at least partially responsible, since clusters generally hit proud, hard-driving individuals who work under substantial self-imposed stress. Graham has found that most cluster sufferers are similar in appearance, with prominent masculine features and reddened, grainy, deeply furrowed skin. Dilation of blood vessels is also apparently present in clusters. Therefore liquor or a dose of any drug that expands vessels, like nitroglycerin, can trigger or worsen an attack...
Modern medicine has more potent weapons. Ergotamine tartrate, an ergot, or rye fungus derivative, constricts painfully swollen blood vessels and helps many migraine-and cluster-headache patients. Tranquilizers can also provide short-term relief of the tension that can trigger a severe headache. Psychological treatment to uncover emotional causes has worked for many people. But for some patients, nothing works very well. Taking what small solace they can from the fact that they are in famous company, they must do what headache sufferers have done for many centuries -learn to endure their ailment...
...written a study that is less of a treatise on African nationalism and politics than a fond, informal portrait of one of postcolonial Africa's most engaging leaders. Nyerere, now 50, the son of a chief of Tanganyika's relatively minor Zanaki tribe, was raised in a cluster of mud huts and sent off to a government school at twelve. He became a teacher of biology and history, and studied for three years at the University of Edinburgh. Back in Tanganyika, he was increasingly drawn into the campaign for independence. Characteristically, however, as he traveled the vast colony...