there are two major active components in cannibis: THC and CBD. THC is generally responsible for the “high” and also for tendency for anxiety in some people. CBD is though to give the “mellow” feelings and to have anti-inflammatory properties. A give strain of Cannibis will have different proportions of the two and different people will react more strongly to one or the other producing varied results. CBD is often extracted and use for calming and anti-inflammation.