eacher ratings of conduct problems in children and a criminal record in young adults. A study by Yousef Tzabi suggested that cigarette smoking during pregnancy may be one of the causes of hyperactivity and learning deficits in children. In a laboratory study with Sprague-Dawley mice, it was shown that hyperactive male pups that were exposed to nicotine prenatally had significantly higher nicotinic receptor concentrations in the cortex than did the controlled
             ...