Addiction to alcohol is associated with the brain’s reward system, which reinforces behaviors that feel good — like drinking — by releasing neurotransmitters such as dopamine and endorphins. With prolonged alcohol consumption, a person’s brain can gradually adapt to the point that excessive amounts of drinking are required in order to produce the same pleasure [...]

Tags: alcohol abuse, drd2, drug abuse, morphine

SNPwatch gives you the latest news about research linking various traits and conditions to individual genetic variations. These studies are exciting because they offer a glimpse into how genetics may affect our bodies and health; but in most cases, more work is needed before this research can provide information of value to individuals. For that [...]

Tags: emotional, morphine, opioid receptor, pain, physical, PNAS, rejection, UCLA