40.8% of paediatricians in the USA failed to diagnose illegal drug abuse when presented with a classic description of an adolescent patient with symptoms of drug abuse.  The symptoms included red eyes and runny nose, frequent sore throat, headache and chronic fatigue, loss of appetite and loss of interest in school and worsening relationships with parents.
The study illustrates why parents, caregivers and other adult influencers need to be aware that every child is at risk for trying or using drugs, and that adults words and actions make a difference in keeping young people drug free.