but it can make u hallucinate however its rare but specially if u eat it
Myth: no one has ever died from smoking marijuana
Fact: Researchers in Boston have found that the risk of a heart attack goes up nearly five times in the first hour after smoking a joint.
For someone in their 20s, the risk is so low to begin with that it remains insignificant. But for older people, a factor of five could mean trouble.
"People's risk for coronary artery disease increases as they enter their 40s and 50s, so the risks associated with smoking marijuana, which might have been a trivial issue when people were younger, may now pose a significant health concern," said the lead researcher Murray Mittleman, director of cardiovascular epidemiology at Boston's Beth Israel Deaconess medical centre.
In the US, there is evidence that cannabis consumption is on the rise among people in the 30 to 50 age group. But the study is not as bleak as it sounds for middle aged pot users. To put it in proportion, the researchers admit that smoking a joint puts no more extra strain on the heart than strenuous physical exercise - which is recommended as a general tonic.
Another catch in the research is that it is based on interviews with people who have just survived heart attacks, and does not look at the relative cardiac health of cannabis smokers versus non-users in the population as a whole.
Of the 3,882 interviewees, only 3% admitted to having used cannabis in the year before their heart attack, and only 0.2% - nine people - smoked it in the hour before.
On the basis of this small sample, the Boston scientists concluded that in the hour after smoking a joint the relative risk of a heart attack increased by 4.8 times.
Studies have shown that cannabis use increases heart rate, but it is not clear how it may trigger a heart attack. To muddy the picture still further, cannabis smokers were found to be more likely than non-users to be overweight and to smoke tobacco, additional risk factors for heart disease