Chloe33 wrote:
Weed has never hurt anyone, go look it up.
I would disagree:
http://www.rcpsych.ac.uk/mentalhealthin ... nabis.aspx
Mental health problems
There is growing evidence that people with serious mental illness, including depression and psychosis, are more likely to use cannabis or have used it for long periods of time in the past. Regular use of the drug has appeared to double the risk of developing a psychotic episode or long-term schizophrenia. However, does cannabis cause depression and schizophrenia or do people with these disorders use it as a medication?
Over the past few years, research has strongly suggested that there is a clear link between early cannabis use and later mental health problems in those with a genetic vulnerability - and that there is a particular issue with the use of cannabis by adolescents.
Depression
A study following 1600 Australian school-children, aged 14 to 15 for seven years, found that while children who use cannabis regularly have a significantly higher risk of depression, the opposite was not the case - children who already suffered from depression were not more likely than anyone else to use cannabis. However, adolescents who used cannabis daily were five times more likely to develop depression and anxiety in later life.
Schizophrenia
Three major studies followed large numbers of people over several years, and showed that those people who use cannabis have a higher than average risk of developing schizophrenia. If you start smoking it before the age of 15, you are 4 times more likely to develop a psychotic disorder by the time you are 26. They found no evidence of self-medication. It seemed that, the more cannabis someone used, the more likely they were to develop symptoms.
Why should teenagers be particularly vulnerable to the use of cannabis? No one knows for certain, but it may be something to do with brain development. The brain is still developing in the teenage years – up to the age of around 20, in fact. A massive process of ‘neural pruning’ is going on. This is rather like streamlining a tangled jumble of circuits so they can work more effectively. Any experience, or substance, that affects this process has the potential to produce long-term psychological effects.
Recent research in Europe, and in the UK, has suggested that people who have a family background of mental illness – and so probably have a genetic vulnerability anyway - are more likely to develop schizophrenia if they use cannabis as well.
Physical health problems
The main risk to physical health from cannabis is probably from the tobacco that is is often smoked with.
Is there such a thing as ‘cannabis psychosis’?
Recent research in Denmark suggests that yes, there is. It is a short-lived psychotic disorder that seems to be brought on by cannabis use but which subsides fairly quickly once the individual has stopped using it. It's quite unusual though – in the whole of Denmark they found only around 100 new cases per year.
However, they also found that:
Three quarters had a different psychotic disorder diagnosed within the next year.
Nearly half still had a psychotic disorder 3 years later.
So, it also seems probable that nearly half of those diagnosed as having cannabis psychosis are actually showing the first signs of a more long-lasting psychotic disorder, such as schizophrenia. It may be this group of people who are particularly vulnerable to the effects of cannabis, and so should probably avoid it in the future.
Is cannabis addictive?
It has some of the features of addictive drugs such as:
tolerance – having to take more and more to get the same effect
withdrawal symptoms. These have been shown in heavy users and include:
craving
decreased appetite
sleep difficulty
weight loss
aggression and/or anger
irritability
restlessness
strange dreams. .
These symptoms of withdrawal produce about the same amount of discomfort as withdrawing from tobacco.
For regular, long-term users:
3 out of 4 experience cravings;
half become irritable;
7 out of 10 switch to tobacco in an attempt to stay off cannabis.
The irritability, anxiety and problems with sleeping usually appear 10 hours after the last joint, and peak at around one week after the last use of the drug.
Compulsive use
The user feels they have to have it and spends much of their life seeking, buying and using it. They cannot stop even when other important parts of their life (family, school, work) suffer.
You are most likely to become dependent on cannabis if you use it every day.
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*Truth fears no trial*
DX AS & both daughters on the autistic spectrum