Rec. Therapists might be interested in this list of drinks that claim to calm people.
I noticed that my favorite drink, coffee, was not on the list. (Laugh aloud). It has a lot caffeine. Over the years, my tolerance for caffeine has become high. In fact, I can drink a few cups and take a nap. That probably isn't a good thing.
You can see the drinks listed at this Fox News health article: