does smokin weed give u cancer?

Question

ive heard dat smokin weed can give u cancer is dis true?

Answer 1

The answer to this isn’t simple. We know from very clear evidence that tobacco causes cancer. But we are still learning about the effects of cannabis and whether it has the same effects as tobacco.

Cannabis smoke contains the same cancer causing substances (carcinogens) as tobacco - at least 50 of them. In addition, cannabis is often mixed with tobacco when smoked.

One of these carcinogens is benzyprene. Benzyprene is in the tar of both tobacco and cannabis cigarettes. We know that benzyprene causes cancer. It alters a gene called p53, which is a tumour suppressor gene. We know that 3 out of 4 lung cancers (75%) are linked to this gene. The p53 gene is also linked to many other cancers.

Cannabis also contains a substance called THC (tetrahydrocanabinol). It is the THC in the cannabis that alters your mood and behaviour. The amount of THC in a cannabis cigarette varies considerably. Researchers have shown that THC causes benzpyrene to promote the p53 gene to alter.

Evidence on cannabis and cancer

Several research studies have shown a link between cannabis and cancer. But other studies have shown no link. This makes it difficult to say exactly what the risk is. There have been a couple of systematic reviews that have tried to draw some conclusions on this.

In 2005 a review looked at the results of several studies into marijuana use and cancer risk. The researchers looked at 2 cohort studies and 14 case control studies. The case control studies involved many different types of cancer. Results were mixed and the researchers could not make any firm conclusions about the risk of cancer. It was also difficult to draw conclusions because of limitations in the studies. They included small numbers of people, involved too few heavy marijuana users and possibly underreported marijuana use in those countries where it is illegal.

In 2006 a systematic review looked at marijuana use and lung cancer risk. Although they could not find a significant link between marijuana and cancer, the reviewers reported that smoking marijuana increased tar exposure and caused changes to the lining of the small tubes in the lungs. They recommended that, until we have more definite evidence, doctors should warn people of the possible harmful effects of marijuana smoking.

In early 2006 doctors reported on a possible link between cannabis and bladder cancer. Smoking is one of the main causes of bladder cancer. This study looked at men with bladder cancer under the age of 60, who had smoked marijuana, and compared them to men who hadn’t smoked it. The study showed that marijuana may be a possible cause of bladder cancer. But as the study was small, researchers need to investigate further to find out for certain.

So at the moment the evidence isn’t clear. We do know that, like tobacco, cannabis contains cancer causing substances. Therefore it would seem likely to increase cancer risk. But we need more research to know this for sure.-

Answer 2

the answer is simple, anything thats not suppose to enter the body is harmful

Answer 3

Well, you are putting a foreign substance into your lungs. It is possible.