What is the Endo-Cannabinoid system?

The endo-cannabinoid system has been recently recognized as an important modulatory system in the function of brain, endocrine, and immune tissues. It appears to play a very important regulatory role in the secretion of hormones related to reproductive functions and response to stress. 

How does CBD help the immune system?

 Although inflammation is often seen in a negative light, it's a vital immune response to infection. ... Therefore, preventing inflammation when it is actually needed can lower immune function and make people more susceptible to disease. CBD and other cannabinoids may be able to help balance that function in the body. 

 The receptors that CBD oil targets are in the endo-cannabinoid system, which can be found in the nervous system, digestive system, in your brain, and throughout your entire body. When your endo-cannabinoid system is not balanced, you suffer from things like stress, depression, hypertension, fatigue, migraines, chronic pain, and more.