Are people at my school taking drugs? The answer is probably yes!

If you have been offered drugs, if you are tempted to try them, or do you know someone who is taking drugs - it might help to know more about them.

What is a drug?

A drug is any substance that changes the way the mind and body work.

This includes prescribed drugs, illegal drugs, alcohol and tobacco.

Drugs prescribed a by a doctor are intended to chemically change things in your body to improve your health.

Illegal drugs such as cannabis, ecstacy, heroin and cocaine are usually taken to change how you feel, to intensify or dull your senses, alter your sense of alertness, or decrease physical pain.

In the short term drugs can make you feel happy even euphoric, chilled or relaxed, or full of energy to dance all night.

It is these sensations that some people become addicted to.

Drug Abuse

Although Robbie Williams seems a larger-than-life character, he also suffers from depression. He has relied on drugs and alcohol to support him through the years. When he joined Take That, the rules included no drink, no cigarettes and no drugs, but Robbie continued to drink larger and vodka, and use cannabis, speed, ecstasy and coke. Other celebrities that suffer from this abuse include Lindsey Lohan, Pete Doherty, Kate Moss and Amy Winehouse.

George Michael has admitted being addicted to prescription drugs, and said he believes the world would be a better place if more people smoked marijuana.

The pop singer blamed his erratic behaviour on an attention-seeking and 'self-destructive' impulse brought on by the death of his mother a decade ago.

Explaining the cause of the recent incident where he was found slumped at the wheel of his car in London, he told host Michael Parkinson: "It involves prescribed drugs and it involves a dependency on them and the tendency to chase one drug with another because of side effects."