Due to planned maintenance, a number of eresources will be unavailable on Sunday 19 August. This includes Ancestry Library Edition, Ebooks and ProQuest.
What are drugs and what are their effects on people who use them?
Drugs are substances that change a person's physical or mental state. The vast majority of drugs are used to treat medical conditions, both physical and mental. Some, however, are used outside the medical setting for their effects on the mind. These are referred to as recreational drugs, and many of them are illegal in Australia.