A long-term study,(six years)which is  due to be published in the Lancet psychiatry confirms that long-term use of skunk marijuana can have lasting effects on mental health. The study addressed what is described as first episode psychosis and concluded that this is strongly reliant on the type of cannabis used. The research investigators established there was little or no harm to mental health, if low potency hash or block, cannabis is used, even if the use is daily.

The report concluded that the risk increased significantly, if the skunk marijuana is used. These findings confirm what is already thought that there is a strong association with the frequent use skunk marijuana and psychosis.

For those who are not in the know, skunk marijuana is a term applied to select plants which are high levels of THC; the active ingredient in Skunk marijuana. Skunk marijuana, which normally grown in legally, using hydroponic cultivation, and matured, under artificial lights.

Researchers have concluded that a THC level in skunk marijuana is 15% percent higher than normal block hash or cannabis.

The research showed that those who smoke skunk marijuana every day are up to 5 times more likely to suffer with psychosis ,compared to those who do not use the recreational drug.

It is estimated that some 60,000 people in Britain are living with a mental health condition. This can be greatly worsened by smoking skunk marijuana.  The report concluded that the smoking of this potent strain of marijuana could possibly be accountable for up to quarter of new cases psychosis, paranoia and schizophrenia.

This research backs up a study carried out in Switzerland using functional magnetic resonance imaging machines, concluded that skunk marijuana alters the size of  a vital area of the brain, the amygdala; thought to be the centre of all emotions.

This research goes alongside the fact that some states in America have deregulated skunk marijuana, making it legal.

The true effect of this potent form of marijuana will only be really realised in maybe two or three generations time, when there is a notable is Spike in the levels of psychosis schizophrenia paranoia in the younger generation.