A clip from a BBC Special on how cannabinoid receptors work and the density of receptors in the brain and body. Scientists map the cannabinoid receptors in the brain by using a radioactive drug that attaches to the receptors.
A clip from a BBC Special on how cannabinoid receptors work and the density of receptors in the brain and body. Scientists map the cannabinoid receptors in the brain by using a radioactive drug that attaches to the receptors.
