Who's smoking what here, Mr. BBC Editor? The same article also contains the following passage:
Those who used the drug at least once every week were twice as likely to develop depression compared to non-users.
A second study, by doctors in Sweden, confirmed previous research suggesting that cannabis can increase the risk of developing cannabis.
Cannabis link to depression. Frequent cannabis use can trigger depression say doctors[cedilla] as other studies back up claims it can also cause schizophrenia. [BBC News | Front Page]
6:01:07 PM
