This is the first article in a new series "NIDA-Supported Research
Shows. . ." that will appear periodically in NIDA NOTES. The series
will explain basic scientific concepts in drug abuse research and describe
how NIDA researchers are using these concepts to develop more effective
ways to prevent and treat drug abuse and addiction. The concepts are based
on evidence from sources such as molecular and neuroscience studies, basic
research with animals, and human clinical research.