Neurotransmitters are chemical messengers that your body relies on to function.

Neurotransmitters send a compound from across the synapse or junction to deliver a message via an impulse from the end of a nerve targeting another cell in the blood, bones, nerve, glands or muscle. Both phytocannabinoids and endocannabinoids are neurotransmitters. 

Read more about neurotransmitters here.