""Nonsmoking alcoholics showed a significantly greater level of recovery than smoking alcoholics in the areas of mental efficiency, higher-level reasoning and problem-solving, visual-spatial processing skills, and working or short-term memory," Timothy C. Durazzo, an assistant adjunct professor in the department of radiology at the University of California, San Francisco (UCSF), said in a prepared statement."

"It is estimated that 50 percent to 90 percent of people in North America who seek treatment for alcoholism are also smokers. And previous research has shown that alcoholics who smoke have poorer cognitive skills than nonsmokers when they are still actively drinking or after a short period of sobriety."

"For this study, researchers from UCSF and the University of Florida recruited 13 nonsmoking recovering alcoholics, 12 smoking recovering alcoholics, and 22 nonsmoking, light-drinking controls. The participants
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