Marijuana refers to dried part of the hemp plant (Cannabis sativa) which is a hallucinogen and is the most widely used illegal substance .

Marijuana, also known as cannabis, is a psychoactive drug that is derived from the Cannabis plant. It is commonly used for recreational and medicinal purposes, and it is known for its psychoactive effects, including altered states of consciousness, relaxation, and altered sensory experiences.

In the field of psychology, marijuana is often studied for its effects on the brain and behavior. For example, research has examined the effects of marijuana on cognitive functioning, such as memory and attention, and on mental health conditions, such as anxiety and depression.

Marijuana can also be a subject of study in the field of addiction psychology, as some individuals may develop a dependence on the drug and may experience withdrawal symptoms when they stop using it.

Overall, marijuana is a substance that is of interest to psychologists due to its psychoactive effects and potential impacts on brain function and behavior.


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