A groundbreaking new study from the Journal of Addiction Medicine finds that medical marijuana users are more likely to use prescription drugs both medically and non-medically. New numbers out of Colorado shows a large increase in students being suspended for using marijuana.
Read MoreThe active ingredient (THC) in today's marijuana is much higher than it was in the '60s and '70s. Then, the THC levels averaged about 2.3% whereas now it averages about 8% and can reach up to 30%. This is because growers are manipulating and modifying the plant to make it stronger.
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