Cannabis is also known as draw, blow, weed, hash, puff, ganja and marijuana.
Cannabis is smoked in 'joints' with or without tobacco.
Smoking cannabis will make you feel relaxed - probably to the point of feeling 'out of it' or 'stoned'. Smoking cannabis with tobacco carries the same health risks as cigarette smoking - it increases your chances of suffering from 50 different illnesses and conditions, including cancer and heart attacks. Britain's Drug Tsar Keith Hellawell believes cannabis is twice as carcinogenic as tobacco. Scientists aren't yet agreed whether using cannabis impairs memory but it can temporarily reduce coordination. Cannabis makes the reflexes slower, and so could cause accidents especially if you drive or operate dangerous machinery under the influence.