Humans have been consuming cannabis since prehistory, although in the 20th century there was a rise in its use for recreational, religious or spiritual, and medicinal purposes. It is estimated that about four percent p.14 of the world's adult population use cannabis annually and 0.6 percent daily. Cannabis is the world's most often used illegal drug.Raetsch, Christian. Enzyklopedie der Psychoaktiven Pflanzen The possession, use, or sale of psychoactive cannabis products became illegal in most parts of the world in the early 20th century. Since then, some countries have intensified the enforcement of cannabis prohibition while others have reduced the priority of enforcement.

Marijuana

• Marijuana or ganja: the flowering tops of female plants, from less than 1% THC to 22% THC; the wide range is probably one of the reasons for the conflicting results from different studies.

Psychoactive potency by cannabis plant part is approximately as follows (descending order):

1. Trichomes
2. Female flowering buds
3. Male flowering buds
4. New shoots
5. Leaves from flower buds
6. Leaves in ascending order of size
7. Stems of leaves (petioles) in ascending order of size
8. Stems in ascending order of size
9. Roots and seeds

Hashish

• Hashish (pressed keif) or charas: a concentrated resin composed of heated glandular trichomes that have been physically extracted, usually by rubbing, sifting, or with ice.

Kief

• Kief:

(1) The sticky resin saturated bits of plant before pressed into hashish. It's chopped flowering tops of female cannabis plants, often mixed with tobacco;
(2) Moroccan hashish produced in the Rif mountains;
(3) sifted cannabis trichomes consisting of only the glandular "heads" (often incorrectly referred to as "crystals" or "pollen");
(4) the crystal (trichomes) left at the bottom of a grinder after grinding marijuana, then smoked.

Hash oil

Methods of consumption

. THANKS!--->main: Cannabis consumption Cannabis is consumed in myriad ways, most of which either involve inhaling smoke from ignited plant or administering orally.