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Caffeine addiction is such a downer that regular coffee drinkers may get no real pick-me-up from their morning cup, according to a study by British scientists. Bristol University researchers found that drinkers develop a tolerance to both the anxiety-producing and the stimulating effects of caffeine, meaning that it only brings …

Former Vice President Dick Cheney, who has a long history of heart problems, has been fitted with a left ventricular assist device (LVAD), which is a battery-operated, mechanical pump-type device that’s surgically implanted to help a weakened heart sustain life. Cheney, 69, underwent the procedure last week at Inova Fairfax …

BAGHDAD, Iraq – Amortar attack (search)Sunday killed two U.S. soldiers and left 16 wounded — one critically — at a base west of the Iraqi capital. Maj. Richard Spiegel of the Army’s 13th Corps Support Command said the mortar barrage slammed intoLogistical Base Seitz (search), on Baghdad’s western outskirts, around …