Alien Planet "Full Documentary" Know your brain: Synesthesia. Neurotransmitter Synapse 3D Animation. The Beast File: MDMA (HUNGRY BEAST) Walking Down the Path of Social Facilitation. Egocentrism. Part 1 of 5 - Is Alcohol Worse than Ecstasy - BBC Horizon. Part 2 of 5 - Is Alcohol Worse than Ecstasy - BBC Horizon. Part 3 of 5 - Is Alcohol Worse than Ecstasy - BBC Horizon. Part 4 of 5 - Is Alcohol Worse than Ecstasy - BBC Horizon. Part 5 of 5 - Is Alcohol Worse than Ecstasy - BBC Horizon. Son of Citation Machine.