When it comes to the controversy surrounding medical marijuana, an international team of researchers is busy stirring the pot by releasing findings that suggest the drug helps promote brain cell growth while treating mood disorders.The hippocampus area of the brain where the neuronal growth occurred is key to the regulation of stress and other mood disorders, Zhang's team point out. This region is also important to the control of cognitive processes such as learning and memory.Among the common addictive drugs, marijuana alone appears able to promote neurogenesis when used over time and in the right dosage, the researchers say. In contrast, prior research has demonstrated that chronic administration of cocaine, opiates, alcohol and nicotine inhibits brain cell growth.
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