Highly potent weed creating marijuana addicts worldwide, study says

Higher concentrations of tetrahydrocannabinol or THC -- the part of the marijuana plant that makes you high -- are causing more people to become addicted in many parts of the world, a new review of studies found.

Compared with people who use lower-potency products (typically 5 to 10 milligrams per gram of THC), those who use higher-potency cannabis are more likely to experience addiction and mental health outcomes, according to the study published Monday in the journal Lancet Psychiatry.

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