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Marijuana also affects brain development. When people begin using marijuana as teenagers, the drug may reduce thinking, memory, and learning functions and affect how the brain builds connections between the areas necessary for these functions.
This article originally appeared on ATTN:. Those opposed to marijuana sometimes argue that the substance fries your brain, but new research published earlier this year in the Journal of Neuroscience found that marijuana does not kill brain cells. In fact, marijuana can actually have a positive impact on a personâs mental health, as ATTN: has noted before.