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Due to the intoxicating effects marijuana possesses, it has been made illegal in most countries. But this very quality is due to the fact that it marijuana mimics the effects of chemicals that the brain already uses for many important functions. Brain mechanisms use cannabis like compounds called endocannabinoids to [...]

THC reduces the response to threat in a specific portion of the brain. Volunteers were given delta-9-tetrahydrocannabinol (THC), the active ingredient in marijuana, and shown photographs of emotional faces, which represented signals of social communication. Results, of brain scans showed that THC reduces the response to threat in a brain region called the amygdala. This [...]