Genetics make up about 50% of the risk for alcohol dependence, but they by no means tell the whole story. Genetic history is often hard to distinguish, but if parents are regular heavy drinkers, or they drink to reduce stress and depression, it is likely that their children will grow up believing that these behaviours are normal and possibly harmless. But environmental influence doesn’t come only from the home; peer pressure from friends, colleagues and partners can also encourage new and difficult patterns of drinking which can lead to dependency or co-dependency.
The first Europeans to visit Ontario arrived by boat. French explorers Étienne Brûlé and Samuel de Champlain followed the St. Lawrence River into Lake Ontario in 1610 and 1615. Henry Hudson sailed into Ontario from the north and claimed the Hudson Bay area for Britain in 1611. Read about Ontario’s first foreign settlers from across the Atlantic. Explore French Ontario in the 17th and 18th centuries or learn about the migration of Germans to Canada. Source: https://goo.gl/KYyyCn
This is an ongoing debate in the medical community, but it is generally agreed that there is no one cause for the development of addiction. According to the National Institute on Drug Abuse, contributing factors may include a genetic predisposition to develop addictive tendencies, an environment that is permissive of drug abuse, access to illicit substances, and certain developmental issues. The existence of a Dual Diagnosis is one of the biggest risk factors for the development of addiction. Heroin Withdrawal | First Week In