Why Philip Seymour Hoffman’s Death Is So Scary It is clear that the root causes of drug addiction, like those of many multifactorial diseases, are frustratingly elusive — exceedingly nebulous mixture — of genetics, exposure, culture, conditioning, personality and environment . . . Addiction obviously runs in families, but plenty of addicts come from…

An eight year study from researchers at the University of Pittsburgh School of Medicine, in conjunction with six other healthcare centers across the country, of over 600 teenagers has shown that kids diagnosed with ADHD have a substantially higher prevalence of substance abuse and cigarette use than kids without ADHD, regardless of whether or not…