Marijuana is one of the most commonly used illicit drugs in Australia. It can make you feel chilled, but it also causes dependence, memory problems, paranoia and psychosis.Marijuana is made from the dried leaves and flowers of a plant called Cannabis sativa. It’s also called dope, pot, grass, spliff, weed and joint. It’s usually smoked through a joint (like a cigarette) or through a bong or water pipe....

A new study in the American Journal of Psychiatry suggests that cannabis may actually have a more negative impact on teens’ cognitive development than alcohol.The study’s results put up a warning sign to teens that regular use of marijuana, for instance, could have long-lasting effects on their brains....

Attention deficit hyperactivity disorder (ADHD) is a chronic problem that results in poor concentration and control of impulses. It can affect a child's learning and social skills, and can have an impact on family functioning. It's estimated one in 20 children in Australia have ADHD. It is more common in boys than girls....