Cannabis a natural drug derived from the Cannabis Sativa plant, which is found wild in most parts of the world and easily cultivated in Britain. It comes in three forms: as a solid dark lump known as a resin, as leaves, stalks and seeds called grass, or as sticky oil. It can be rolled with a tobacco in a spliff or joint, smoked on its own in a pipe or bong, or eaten as part of a cake or cookie.

There are different strengths of cannabis although mostly it is quite mild; some forms such as skunk are very strong and smokers can have a hallucinogenic reaction.

• An initial head rush that lasts a couple of minutes.
  

• Sniffing poppers during sex can make orgasms feel like they last longer. And some people say it makes their sexual organs feel massive.
  

• May help relax anal sphincter muscles.

But there is a flip side:

• The effects don't last long and can leave people feeling sick, faint and weak. Especially if taken while dancing.
  

• Some people say they have trouble getting an erection after sniffing poppers.
  

• Poppers can give you the Mother of all headaches.
  

• Some people get a rash around their mouth.

• Poppers are toxic and can kill you if you swallow them.
  

• Taking poppers is dangerous for anyone with chest or heart problems, anaemia or glaucoma.
  

• It's very dangerous to take poppers with viagra or if you're on medication to reduce your blood pressure as it can cause it to drop so low it is dangerous.
  

• Don't get them on your skin, poppers burn.
  

• They are highly flammable.