Gabor Maté’s 2012 paper in the Journal of Restorative Medicine discusses the degree to which childhood trauma leads to addiction in later life.

“Early trauma has consequences for how human beings respond to stress. Trauma in children, such as sexual, physical or emotional abuse or abandonment alter the child’s physical stress mechanisms and, as a result, the child is more reactive to stress throughout their adult life. Studies of drug addicts find high percentages patients have experienced childhood trauma of various sorts, including physical, sexual and emotional abuse.”

Read the full article here.