[Know your rights]

Marijuana--or more specifically its active ingredient, tetrahydrocannabinol

A common misconception. Marijuana has many active ingredients ... which is why the Canadian-approved medicine Sativex uses the whole plant rather than extracting a subset of its active ingredients.

[numberonepal]

A common misconception.

It's always easy to spot the junk science. They almost always talk about a single aspect of a system and use it as THE defining factor for the study.