How Addiction Happens in the Brain

Addiction specialists and researchers have long known that the process of substance addiction begins when the brain’s pleasure center repeatedly experiences an abnormal buildup of a chemical called dopamine. However, they have not understood why a chronic dopamine buildup produces such dramatic changes in brain function. In a study published in June 2014 in The…

New Breathalyzer Detects Marijuana Use

Breathalyzers are devices originally developed to detect the concentration of alcohol in a person’s bloodstream. Law enforcement agencies throughout the U.S. commonly use these devices as part of procedures designed to identify people driving while intoxicated. In a study published in December 2013 in the journal Clinical Chemistry and reported in May 2014 by study…