Marijuana is commonly used for pain relief in many U.S states, but has regrettable side-effects such as making you forgetful.
Now scientists have pinpointed the part of the brain where the drug hinders working memory and discovered it is a separate area to where it has a medicinal effect.
They say the findings raise the possibility that they could design a cannabis drug that is able to treat pain and seizures without hurting the memory.
The team, led by Giovanni Marsciano from the French biomedical institution INSERM, found that marijuana eased pain via the neurons in the brain. However, the main psychoactive ingredient (THC) impaired memory via the astroglia - passive support cells that play second fiddle to active neurons.
http://www.dailymail.co.uk/health/ar...mory-loss.html