In one experiment, he measured whether heavy smokers could watch a film that romanticizes the habit without taking a puff.

他做过一项实验：让那些烟瘾很大的人去看一部美化吸烟的电影，看他们是否可以不点上烟。

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For some patients, taking a puff or two from an inhaler before exercise can ward off an attack.

WSJ: Kids With Asthma Play Hard, Too