There is some evidence that Industrial Hemp Extract may help people to quit smoking. A double-blind pilot study tested 24 heavy smokers and gave one half of the group an inhaler containing Industrial Hemp Extract and the other half, an inhaler containing a placebo. They were instructed to use the inhaler when they felt a craving to smoke. Over the course of the study, the subjects recorded their cravings for tobacco and their anxiety levels daily. A follow-up interview that took place 21 days after the treatment revealed that cigarette consumption in the Industrial Hemp Extract group had gone down by 40 percent when compared to the placebo group.