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Marijuana may block Alzheimer's
The compound may protect the brain
The active ingredient in marijuana may stall decline from Alzheimer's disease, research suggests.
Scientists showed a synthetic version of the compound may reduce inflammation associated with Alzheimer's and thus help to prevent mental decline.
They hope the cannabinoid may be used to developed new drug therapies.
The research, by Madrid's Complutense University and the Cajal Institute, is published in the Journal of Neuroscience.