Study finds 25% have a substance or mental disorder each year
Club drug's effects can last two years, study says
Internal cues can trigger drug tolerance, explain binges
Study finds one in six has a diagnosable problem
Malfunction can cause obsession, addiction
Health experts call it misguided bid to protect against brain damage
Group says stress-related drug, alcohol problems will worsen
Study shows body-building supplement GBL causes severe withdrawal symptoms
Drug manufacturer uses language teenagers are more likely to listen to
Use of 'poppers' on rise among gays in San Francisco
Relapse rates plummet when treatment, regular care combined
Report suspects painkiller in 172 more fatal overdoses
Ashtrays, tinkling ice cubes can unleash powerful cravings for a former addiction
Docs need to be aware of drug's symptoms to ensure proper treatment
Codeine preparations most abused
American students report drugs readily available at school
Related to drug use, pregnancy, suicide
Va. man was charged with murder in friend's overdose of controversial painkiller
After quitting, rats' yearning for cocaine grows over time
Doctors prescribe medicines too much, some say
One dose triggers dopamine, addiction in mice
Study follows 33 years of addiction, suggests early treatment
Reverses 15-year trend; disease spread a concern
Abuse concerns leave largest dose of OxyContin on hold
Brain behaves differently in craving and reward
Cutting off dopamine and serotonin shuts down the 'high'