Twin study shows cannabis makes moving to hard drugs more likely
BMJ 2006; 332 doi: https://doi.org/10.1136/bmj.332.7535.197-b (Published 26 January 2006) Cite this as: BMJ 2006;332:197
- Tony Sheldon
- Utrecht
The chance of Dutch teenagers using hard drugs later in life is six times greater among those who use cannabis than among those who don't. This is the conclusion of a study from Amsterdam's Free University.
The authors of the study, which was published online ahead of print on 10 January in Behavior Genetics (http://www.springerlink.com, doi: 10.1007/s10519-005-9023-x), say that preventing teenagers under 18 using cannabis can be important in ensuring that they don't move to hard drugs later.
The study casts doubt on one of the main arguments underpinning the tolerant policy towards cannabis in the Netherlands. …
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