These cannabinoids play a vital role in helping PTSD cases since they prevent the mind from retrieving traumatic memories, effectively preventing nightmares which is one of the landmark symptoms of this condition. There are several studies that further document how the endocannabinoid system works in suppressing traumatic symptoms; others suggest that CB1 receptors shut down the traumatic memories so we stop paying attention to it. It isn’t a coincidence either, that people with PTSD have lower levels of endocannabinoids including anandamides, which serve as natural antidepressants in the body.