The scientific experiment at the rear of it implies that CBD inhibits the endocannabinoid receptors within our brain, which are responsible for saliva production. “As our body undergoes physiological improvements, so do cannabinoid receptors in the endocannabinoid system, which are right associated with the effects produced by CBD.” Verywell http://www.0510365.com/home.php?mod=space&uid=13135353