I've found it to be helpful. I'll bump up my earlier post which as lots of links, some may find it interesting.

CB just stands for cannabanoids, and there are quit a few of those. THC does not cause anxiety, but it does have medical value- the studies are very clear in this. Cannabis is neurorotective, anti-inflammatory, and encourages neurogenesis.

Genetic pre-disposition in the indivudual will always alter how our bodies react/up-take drugs. In this instance the relationship between cananbis and genetic schitophrenic latency is unclear. On one hand it certainly does act as a potencial trigger to behaviours, on the other drugs like Sativex are being formulated as a treatment.

If possible a 50:50 strain is best I've heard, though some prefer up to :75 indica.