Yes what you're saying makes complete sense. In sorry, I misspoke when I said it may improve cognition. And regarding my professor, I dont believe he completely understands stuttering but may have read articles that led him to believe this CBD substance looks promising. Although, I would much rather work on my stuttering with a more direct approach like engaging myself in more public speaking and presentations as well as meditation. Weed and alcohol seem like temporary relief from stuttering anyway. Thanks for your input and everyone else.