Weed can increase paranoia, which increases anxiety, sometimes into panic. The paranoia can be eliminated with correct dosage and environment. If you can eliminate the paranoia, one's anxiety is reduced by smoking.

Also note that THC is stored in your fat cells and time-released, having a mild calming affect, even when you're not high. This is why we get a reputation for being mellow people.
DonnieDarko Reviewed by DonnieDarko on . cannabis erases fear Innate cannabis chemical erases fears Calming brain circuit could treat anxieties Brain chemicals similar to those in cannabis wipe out bad memories - and could point to new drugs for severe anxiety. The chemicals are called cannabinoids. Mice with faulty cannabinoids can't forget traumatic events, Beat Lutz of the Max Planck Institute of Psychiatry in Munich, Germany and his colleagues have found1. They suggest that the chemicals wipe fearful memories from the brain. Drugs that Rating: 5