Do the tools to quantify addiction help to define it?

Understanding what counts as an addiction, and what can be done to address it is the work of researchers across many disciplines. But what tools are used to 'measure' addiction, and are these capable of legitimising an addiction ...

Breath study brings roadside drug testing closer

(Phys.org) —A group of researchers from Sweden have provided further evidence that illegal drugs can be detected in the breath, opening up the possibility of a roadside breathalyzer test to detect substances such as cocaine, ...

How heroin works: Imaging opioid receptors in the brain

(Phys.org) -- Researchers and doctors have gleaned new clues to the molecular mechanisms behind some of the most addictive substances in the world, thanks to two new studies that uncovered the structures of some of the most ...