The human body contains a lot of receptors that receive signals from various parts of the body as stimuli. When you consume CBD, it interacts with the CB1 and CB2 receptors that are present in the peripheral and central nervous systems. There are serotonin levels in the body too and in people who have stress and anxiety, these levels are quite low. CBD also change the levels of serotonin and thus plays an important role in improving mental health.