Drugs - AQA Biology

Drugs are everywhere in society. We all know that drugs are dangerous, but what exactly is a drug? Would you think of a can of redouble containing damaging drugs, or a cup of coffee? In this video we examine the definition of a drug, examples of different types and their effects. Contact me: http://www.sunnylearning.com/contact.html Additional study material: http://www.sunnylearning.com