The Science of Addiction

6. Relating to or involving dopamine, especially in terms of its function as a neurotransmitter.
7. A profound difference between people, viewpoints, feelings, etc.
8. Resulting from or relating to an irresistible urge.
10. A chronic disease characterized by drug seeking and use that is compulsive, or difficult to control, despite harmful consequences.
12. The fundamental units of the brain and nervous system, responsible for receiving sensory input from the external world.
14. Proceeding in a gradual, subtle way, but with very harmful effects.
15. (of a physical illness or other condition) Caused or aggravated by a mental factor such as internal conflict or stress.

1. Chemical substances that transmit nerve impulses across a synapse.
2. A general feeling of discomfort, illness, or unease whose exact cause is difficult to identify.
3. The branch of biology that deals with the anatomy, physiology, and pathology of the nervous system.
4. A standard or criterion by which something is judged or recognized.
5. A solution or remedy for all difficulties or diseases.
9. Understand and share the feelings of another.
11. The quality of being delicate or vulnerable.
13. The junctions between nerve cells where impulses pass by diffusion of a neurotransmitter.