Cannabis, also known as marijuana (sometimes spelled "marihuana") among many other names,a[›] refers to any number of preparations of the Cannabis plant intended for use as a psychoactive drug. The word marijuana comes from the Mexican Spanish marihuana. According to the United Nations, cannabis "is the most widely used illicit substance in the world.The major psychoactive chemical compound in cannabis is Δ9-tetrahydrocannabinol (commonly abbreviated as THC). Cannabis contains more than 400 different chemical compounds, including at least 66 other cannabinoids (cannabidiol (CBD), cannabinol (CBN) and tetrahydrocannabivarin (THCV), etc.) which can result in different effects from those of THC alone.
Cannabis can trigger psychotic reactions, interfere with the lesson as it affects the mind, the ability to read and talk and count, apasia, lowered sex hormone male or female. And result in lowered fertility, also reduces the body's defenses against infectious diseases.
Symptoms of marijuana usage among other things: joy (euphoria), impaired time and distance, a decrease of reality and identity, sometimes there are visual hallucinations. On examination found conjuntiva red, reduced muscle strength, increased pulse rate, can be followed by sedation and sleep.
