Mom Stresses, Daughter Smokes

A new study published in the online journal Biological Psychiatry provides the first evidence that prenatal exposure to the stress hormones glucocorticoids predicts smoking and nicotine dependence later in life among women. The study confirmed previous research on prenatal smoking, and suggested that this increased risk of nicotine addiction is the result of exposure to…

Animal Study Links Missing Brain Enzyme With Addiction to Painkillers

The nature-nurture debate is alive and well in the world of drug addiction research. Scientists and addiction experts have long-speculated whether the biological factors—genetic variations and the resulting susceptibility—or the psycho-social factors—like depression, parental substance abuse, or socioeconomic disadvantage—are responsible for addiction. It’s generally agreed that both factors contribute to addiction, with at least 50…