Cannabidiol (CBD) has made a big splash in the medical community in recent years. Though much remains to be discovered about how CBD oil interacts with various systems in the body, the results so far are promising. CBD oil works as an anti-inflammatory agent and sleep aid, and it can be helpful in managing stress and anxiety. These properties have prompted questions around whether pure CBD oil can help improve an individual’s immune system altogether. Read on to learn more about how the immune system works and how CBD oil can influence it.