Cannabis

Marijuana, spliff, weed, pot... the most widely-used illegal drug in Britain. It is naturally occurring from the cannabis plant containing tetrahydrocannabinol which makes you feel very chilled out, happy and relaxed. It also makes you hallucinate and alter your senses.


There's increasing evidence that cannabis use is linked to a number of health risks. It damages the ability to concentrate, decreases motivation and more than occasional use in teenagers can affect psychological development. Users can become anxious, suspicious and even paranoid. Heavy use increases the risk of serious psychiatric illness.


Cannabis is a class B drug and so penalties for possession of it can be severe.