This explains, in a general sense, why people with addictions occasionally forsake all other lifestyle and obligations and also their own health in search of the addictive substance.. Addiction Causes Addiction or drug abuse is a complex mind disease. A person with an addiction experiences cravings that persist even in the face of extremely negative consequences. During a craving, a person with an addiction terribly misses the habit-forming drug, and often he or she encounters symptoms of withdrawal. Evidence strongly suggests that genetic susceptibilities and biological characteristics play a role in addictions; however, the advancement of an addiction is also shaped by someone’s environment .Through the periods, the tutors read books to, and talked and played with, the infants in Spanish. Our study provides evidence that infants’ social skills play a role in cracking the code of the new language, study co-author Patricia Kuhl, co-director of the Institute for Brain and Learning Sciences at the University of Washington, said in a university information release. We found that the amount to which infants visually tracked the tutors and the playthings they held was linked to brain measures of infant learning, showing that social behaviors give helpful info to infants in a complex organic language learning scenario, she added. The study was published online in the journal Developmental Neuropsychology recently.