These are the exact words of Mahesh Thakkar. He is head of research in the Department of Neurology at the University of Missouri's School of Medicine. Thakkar explains that when a person drinks alcohol they get sleepy. He says a drug in cigarettes fights that sleepy feeling. _____________________________这正是Mahesh Thakkar的原话,他是密苏里大学医学院神经内科的研究负责人. Thakkar解释,人喝酒后易困,他称香烟中的某种药物能驱赶这种睡意,而这种药物即尼古丁._______________________