Marijuana is a complex set of issues, fraught with disinformation and misunderstandings. For example, recreational use Marijuana is different from medical use Marijuana, in that for medical reasons, certain strains have more effects in treatment of specific medical problems than others. For personal use, as long as you get high, the strain doesn’t really matter. Consider also that Marijuana, used for medicine or personal reasons, is different from industrial Hemp. Industrial Hemp provides fuel, fiber, food, paper, plastics, building materials and some medicinals, but is not psychoactive.
Paul Armentano, Deputy Director of national NORML and one of the planet’s greatest Marijuana policy researchers, has compiled a basic primer of what Marijuana is. If you are at all concerned with the issues surrounding Cannabis/Hemp/Marijuana, whether for or against, you should read Paul’s primer.