THC

THC (or Tetra-Hydro-Cannabinol) is the main active molecule in cannabis. It has many psychological and physiological effects on the body: a dry feeling in the throat, hunger, red eyes, drowsiness, tiredness, and an impression of euphoria.

In reality, whilse THC is the predominant molecule in the plant, it is only one of 60 cannabinoids contained in marijuana heads.