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New research shows that air pollution plays a role in atherosclerosis or hardening of the arteries. This in turn contributes to heart attacks and/or strokes, according to a study published in the open access journal Genome Biology. The fats that clog arteries apparently work in conjunction with air pollution particles to trigger the genes behind inflammation, which leads to increased lesions in the clogged arteries, and the potential for thrombi, and resultant heart attacks or strokes. . . Listen up Dick Cheney, master of the clot. Clean air is good for you. JULIA WHITTY