Although not everyone who uses marijuana becomes addicted, when an user begins to seek out and take the drug compulsively, that person is said to be dependent on the drug or addicted to it.
As a more concentrated, resinous form it is called hashish, and as a sticky black liquid, hash oil.
Because of the drug's effects on perceptions and reaction time, users could be involved in auto crashes. Drug users also may become involved in risky sexual behaviors, which could lead to the spread of HIV, the virus that causes AIDS.
Cannabis is a term that refers to marijuana and other drugs made from the same plant. Strong forms of cannabis include sinsemilla (sin-seh-me-yah), hashish ("hash" for short), and hash oil.