BIOLOGY 25 Lecture Notes - Lecture 18: Butane, Morphine, Posttraumatic Stress Disorder
Document Summary
Ecstasy creates these effects by releasing serotonin in the brain and central nervous system. Serotonin is a naturally-occurring neurotransmitter a chemical that sends messages round the brain which helps regulate sleep, appetite, muscle contractions, intestinal movements and mood. Dopamine, a pleasure hormone, is also released, contributing to the sense of euphoria. Schedule ii or not classified, whilst several of the drugs rated as least harmful are currently schedule i. Similarly, in the uk, two currently unclassified drugs. Alcohol and tobacco were rated in the top 10 most harmful drugs, whilst ecstasy and hallucinogens (both class a drugs) were both rated relatively low on harms. In summary, there are very marked disparities between the rated harms of different drugs by nearly 6000 users and the rankings of these drugs in both. There are lots of different sorts of harm to consider deaths each year, chronic illness, mental-health problems, social problems like crime and violence, etc.
