Marijuana use linked to heart problems
April 23rd, 2014
06:21 PM ET

Marijuana use linked to heart problems

Young people who use marijuana may be at risk for heart attacks and other serious cardiovascular problems, a new study suggests.

Researchers reviewed records from the French Addictovigilance Network, a national system of centers in France that gather information about drug abuse and dependence. From 2006 to 2010, they found 35 reports of patients who had experienced cardiovascular complications following cannabis use. The  study was published Tuesday in the Journal of the American Heart Association.

About 85% of the patients were men and their average age was 34. In nine cases the patient died.

While the study doesn't identify a particular level of risk of marijuana use, it does call for more research on the subject, and warns doctors that there seems to be at least some danger.

"Currently people think (cannabis is) harmless," says lead study author Emilie Jouanjus, at the Université Toulouse III – Paul Sabatier. "What I think is very important from my work is that we see cannabis use may lead to very serious complications on the cardiovascular system."

Jouanjus was surprised to find all but one of the patients with cardiovascular problems were under the age of 50. She believes this study shows only the tip of the iceberg, as people usually under-report their cannabis use.

"This study shows a some preliminary evidence of cardiovascular harm from marijuana but isn't conclusive,” Dr. Allen Taylor, chief of cardiology at Georgetown University School of Medicine, told CNN in an e-mail. “The study's limitations are important in that we can't know how high the risk is, just that there is a signal of risk between marijuana smoking and heart troubles.”

Taylor says it’s a shame that more isn't known about the potential harms of cannabis.

"It seems that public perception is ahead of the science," he says. "We should remain open to the scientific facts as they evolve."

Only 20% of patients in the study had a known history of heart disease or risk factors for heart disease. The other patients may have had unknown cardiovascular risk factors or a history that was not documented in the medical file.

“I'm not saying that any user of cannabis would suffer from any of these complications," Jouanjus says. But "we do not have enough information to say that cannabis use is safe."

Dr. Shereif Rezkalla. who wrote an editorial accompanying the study in JAHA, said doctors should be required to ask about marijuana use when they see a cardiac patient.

“The perception that marijuana is safe is deep-seated in the public and even amongst some health professionals,” says Rezkalla, a cardiologist at Marshfield Clinic in Marshfield, Wisconsin.

Taylor cautions that while this study doesn’t provide a final answer on the link between cannabis and serious heart problems, “it at least gives one pause to suggest to patients it may not be a heart-healthy habit."

Previous research has suggested marijuana use may double the risk of stroke in young adults.

soundoff (910 Responses)
  1. Heime

    Cannabis kills.

    April 25, 2014 at 09:05 | Report abuse | Reply
    • Madtown

      It does. It kills aggressive tendancies, unlike alcohol which fuels them.

      April 25, 2014 at 10:49 | Report abuse |
    • qckslvr

      Please! Smoke some now!

      April 25, 2014 at 14:23 | Report abuse |
    • RE

      Another un-informed stupe commenting on something he knows absolutely nothing about.

      April 26, 2014 at 11:47 | Report abuse |
  2. Blah

    Ya ever think that just MAYBE the people that had heart issues had those issues (or others) BEFORE smoking the marijuana? I've known a few pot smokers that had severe emotinal problems...they smoked the pot to reduce their anxiety. The anxiety is what more than likley caused the heart problems in the first place.

    April 25, 2014 at 10:22 | Report abuse | Reply
    • ERIC

      The "study" failed to mention any other factors that could contribute. What was the average weight and BMI for the group? How many had high blood pressure, high cholesterol, or other PROVEN risk factors for heart disease. How would you describe their diets? Did they exercise?

      Did they ever abuse Meth, "synthetic weed", "bath salts", Oxy, Adderall, Roofies or "Rave Drugs"? All of which are also underreported.

      So far, all they have is a coincidence, but no cause and effect has been proven. No scientific controls. No blind studies.

      It reminds me of the "study" where they forced a monkey to constantly inhale pot smoke until it died of carbon monoxide poisoning, then attributed the resulting brain damage to the pot.

      If these people got this way by laying on the couch, playing X-box and eating pizza all day, you really can't blame the pot for their heart conditions.

      April 25, 2014 at 13:05 | Report abuse |
  3. Alaya

    Yeah, and the highest percentage of addiction in all professions are MDs. So saying lawyers and MDs using makes it safe is silly. Isnt it amazing how most pot smokers wont listen or tolerate any new information questioning the effect of MJ. Intolerance and denial are among the telltale sign of addiction. Hmmmmm. interesting.....

    April 25, 2014 at 11:08 | Report abuse | Reply
    • noone

      It doesn't "make it safe". But, if people can manage to do well in highly technical professions and use cannabis, it shows that the lazy stoner stereotype is just wrong. Saying that cannabis makes every user dumb and lazy, just because you know some loser who uses it, is like say that black people are all lazy thugs, simply because there are some shady unemployed ones who hang out on the corner of your street all day. You can't draw conclusions about an entire group of people based on just a few outliers. Do I know a loser pot head who is lazy, unemployed, dumb, and still living with their parents at the age of 35? Sure. But, I know many more cannabis users who carry on perfectly normal, productive lives. And I don't want anyone going to jail or being harassed by the police simply because of which herbs the choose to consume. It really doesn't matter and we have better things to use the resources on. Like, I don't know, maybe getting through the mountain of rape kit tests that have been sitting on backlogs for years while the cops are too busy chasing down plant users.

      April 26, 2014 at 09:45 | Report abuse |
    • Lance Doucette

      Proof? Addicted to what? How is this at all related?

      May 3, 2014 at 19:36 | Report abuse |
  4. Nancy

    I really encourage all of you to be more objective and less emotive. Study things thoroughly before responding... All drugs, legal and illegal have an impact on us physcially and psychologically, all of which can be good or bad. Just because one is a "successful" business person doesn't mean they don't have problems. People mask issues and symptoms all the time. Our bodies however, do not, they record everything we do. So in time, our choices will be transparant to all, in how we live our live and longevity. Cannibis clearly has positive benefits for people struggling with chronic pain, glaucoma, anxiety disorders, Attention deficit hyperactivity disorders and others. However, it is addictive and of course so is nicotene and alcohol. So pick your posion, whatever it may be. Just be mindful there will be a cost and a benefit. Medically and socially, we have more research to do.

    April 25, 2014 at 11:39 | Report abuse | Reply
    • Donna

      Marijuana is only mind addicting the body does not become addicted. Face it everyone there are many MORE people who smoke marijuana that you think. I would much rather have a stone lawyer or doctor as opposed to drunks or those who pop prescription drugs.

      April 25, 2014 at 12:44 | Report abuse |
    • Eeyore

      Well, Donna, dear, I'd rather have an attorney who isn't stoned OR drunk. Why would you want one who's either?

      Or are you too stoned/stupid/drunk to care?

      April 25, 2014 at 19:47 | Report abuse |
  5. Gabe

    Overall, I think this article is misleading. Linking marijuana to cardiovascular problems? I wonder what factors they are taking into account in making such assertions or are they singling out marijuana over the MANY RISK FACTORS that cause cardiovascular problems such as SMOKING TOBACCO and DRINKING ALCOHOL.

    It is also stupid, and idiots love stupid, to leap to the conclusion that marijuana alone can cause cardiovascular problems without also considering the person's overall health (obesity issues, etc). If they want to make the argument that obese people that smoke marijuana are more prone to cardio problems, fine. Same for people that smoke tobacco and drink alcohol in levels above moderation.

    But don't try pulling a fast one on people and assert that marijuana alone can increase cardio problems to a healthy adult without the proper research first.

    April 25, 2014 at 12:06 | Report abuse | Reply
    • Lojack

      because when you smoke, you get horn E, when you get horn E, you have s3x, when you overdo it, you have a heart attack!

      April 25, 2014 at 12:19 | Report abuse |
    • Linda

      It has been known tot cause a spike in blood pressure and that is probably the cause.

      May 18, 2014 at 01:09 | Report abuse |
  6. Ethan

    Need more specific information behind the test subjects. (background health, current health, genetic health, previous drug abuse, etc.) No assumption can be possibly be made by this.

    April 25, 2014 at 13:44 | Report abuse | Reply
    • noone

      Funny thing is, they weren't even test subjects. They were just people who went to the hospital with some issue and they asked them, "Do you smoke pot?". If yes, they claim their hospital visit is "cannabis related" even if the person's cannabis use had nothing to do with the hospital visit. Out of all those 1979 (I think) people in the study who copped to smoking, only 35 had some sort of cardiovascular issue. So, of course the weed must have caused it! This is why you should always refuse to answer at the hospital when they ask you if you use cannabis.

      April 26, 2014 at 09:56 | Report abuse |
  7. Ryan

    "Taylor says it’s a shame that more isn't known about the potential harms of cannabis."

    Taylor appears be searching really hard for possible negative side effects of marijuana and it's obvious why: there are no known deaths related to marijuana use. This "study", which is really just an investigation into incidents not a controlled study of any kind, is being promoted to try to destroy the idea that pot is basically harmless.

    Obviously smoking anything is going to cause health issues. Smoking paper or other otherwise innocuous materials will cause similar issues. The point people try to make when they say marijuana is basically harmless is that there is no special complications which lead to a quick demise when using marijuana.

    April 25, 2014 at 15:03 | Report abuse | Reply
    • Linda

      It is naive to think any drugs or herb is not without potential adverse side effects for some people.

      May 18, 2014 at 01:11 | Report abuse |
  8. Shawn

    It seems to me that only from now on and only with new users can any legitimate studies be done on marijuana use. Ive read several of these articles and I have yet to hear just what kind of chemicals were used to grow the weed and which chemicals were used as pesticides and sprayed on the plants that these people used. I also haven't heard any journalist asking these questions. I wonder why.

    April 25, 2014 at 16:00 | Report abuse | Reply
    • bill

      I use only pyrethrins for mites, spinosad for thrips and GH Maxi grow and bloom with a 4 week flush with black strap molasses. Manicures itself. When the laws of man become sane, we can go outside in the soil, in the sun the way God did it some years ago. We had a COLD winter so the bugs should be under control this year.

      April 25, 2014 at 22:24 | Report abuse |
  9. Frank Eggers

    Products of combustion ALWAYS contain toxic substances. If one is determined to use marijuana, one should find ways to ingest it that do not require breathing smoke.

    From what is reported about the rather limited study, it is unclear whether the cardiac damage was caused by something more than simply breathing smoke. Perhaps the damage would not have been caused if the marijuana had been ingested by other means.

    In any case, it is unwise to use drugs unless they are medically indicated.

    April 25, 2014 at 16:10 | Report abuse | Reply
  10. Rachelle Roach,MA,MNT

    Oh yes, a 2014' spin on Reefer Madness of 1936' which BTW, was based on lies... I am a historian and author and we have the proof... Why is is that EVERYTHING GOOD FOR MANKIND IS SOMEHOW TURNED INTO BAD? The incredible Cannabis plant has survived for thousands of years and will continue to do so, my relatives... Long after "the mark of the beast," will be expunged from the planet... If we really want to focus on something worthwhile, why not start with dismantling the New World Order and all the evil that follows it?
    Power To The People and Power To The Cannabis Plant!

    April 25, 2014 at 16:28 | Report abuse | Reply
  11. Rachelle Roach,MA,MNT

    So sorry, I forgot to include that I am from Navajo ancestry and was first introduced to Cannabis when I was fourteen. I will be fifty-four this year and hold five college degrees, numerous health care certifications, graduated Kappa Delta Pi and have had my I Q tested at 180!
    Had my ancestors, not helped the new boat travelers as they came over sick and exhausted, they would have all perished. We used many natural plant remedies to 'cure," them. And we taught them our ways. In exchange, we were put in POW camps. Thank you for your kindness...
    My grandfather had "cannabis,' remedies in his drugstore in Nebraska and it was one of his top sellers! They would barter for natural remedies over dollars as did the ancient Greeks and Romans. This is how many people survived the depression in the 30's!
    No amount of money is going to help you when you are sick and possibly dying. But, the natural remedies will!
    Navajotracker- Rachelle

    April 25, 2014 at 16:41 | Report abuse | Reply
    • Eeyore

      How is it that someone with multiple college degrees doesn't know how to punctuate a sentence?

      April 25, 2014 at 17:11 | Report abuse |
    • Linda

      Why is it essential for you to list your supposed IQ and credentials when making a comment. Does that make your opinion hold more validity that others'?

      May 18, 2014 at 01:14 | Report abuse |
  12. poopmeister

    What people need to also realize is that our food system is known to cause all sorts of health problems. Of course the powers that be are suppressing any true studies from being done on Genetically Modified foods. There is a reason why the rest of the developed nations have banned GMOs. So, in theory, it could have been the food that these subjects were eating that led to their heart conditions. But of course you will never hear about that as being an attributing factor....go straight for the substance that has not a single death attributed to it and ignore all the other factors. Cannabis is a known anti-inflammatory, and inflammation is the number one cause of disease....think about it for a second.

    April 25, 2014 at 17:23 | Report abuse | Reply
    • Eeyore

      Oh, nonsense. You know, it's hilarious when proponents of legalization accuse anyone who doesn't fall in line of using "scare tactics," and then turn around and resort to paranoid conspiracy theories about GMO foods. Really, what nonsense. If you can't find any peer-reviewed studies that show GMO foods are a danger, then just don't bother.

      April 25, 2014 at 17:30 | Report abuse |
    • poopmeister

      Why yes I can Eeyore. There is a reason that there is a ban on GM crops in Europe, because there was a study that was peer reviewed. Look up the link below, they outline 10 studies conducted....smart ass

      April 25, 2014 at 17:42 | Report abuse |
    • poopmeister

      wow Eeyore you sound angry...maybe you need to smoke up. And what the Hell are you talking about? The studies in Europe favor Cannabis for medical purposes. Look up the studies, they aren't hard to find. You see that thing in front of you with all the letters on it....simply push the following letters and you can find some interesting info: "E"U"R"O"P"E"A"N "S"T"U"D"Y" "O"N" C"A"N"N"A"B"I"S" "H"E"A"L"T"H" "B"E"N"E"F"I"T"S"....remember to hit "Enter"
      People like you need to relax and don't get into such a huff. It's alright to not be right all of the time, I even admitted that I didn't realize it was a French study...freaking relax

      April 25, 2014 at 22:34 | Report abuse |
    • Eeyore

      You're even dumber than you first appeared. Good choice of a screen name, dingus.

      April 26, 2014 at 02:10 | Report abuse |
    • poopmeister

      Good going with that thoughtful, insightful reply. I hope that your screen name doesn't imply that you are a miserable person. I do feel bad for you if that is the case, be well Eeyore and I hope that your life is as good as mine.

      April 26, 2014 at 08:37 | Report abuse |
  13. poopmeister

    I'm an idiot, it was a French study. However, there were GM crops in France during certain periods, but not nearly the level here in the US.

    April 25, 2014 at 17:36 | Report abuse | Reply
  14. Dan Chin

    How come nobody mentioned munchies? After smoking some weed, I usually get the munchies and I do not eat anything healthy. Perhaps this contributes to the heart disease :).

    April 25, 2014 at 17:51 | Report abuse | Reply
  15. brad

    Maybe these dr.s should test prescription drugs and compare it to Cannabis use. I bet they won't do it because they get profit from it.,

    April 25, 2014 at 19:27 | Report abuse | Reply
    • Eeyore

      How much would you like to bet, dude? I'll take your wager. I doubt you have a dime to your name.

      April 25, 2014 at 19:44 | Report abuse |
  16. Terry

    Cannabis has never killed anyone.You can't find one ! It kills cancer, eleviates pain and is the best sleep remedy available.

    April 25, 2014 at 19:50 | Report abuse | Reply
    • Eeyore

      It "kills cancer"? Nonsense. If it did, the world would beat a path to the door of every grower. Produce a cite for your claim that is credible, or shut up. People like you are dangerous.

      April 26, 2014 at 02:08 | Report abuse |
  17. Kurtis Clementine


    I feel sorry for all these poor saps who so easily buy into this fictional based conjecture – AKA PROPAGANDA

    April 25, 2014 at 21:25 | Report abuse | Reply
    • fedupwithamericanpolitics

      All part of the Great USA lie.

      April 26, 2014 at 14:23 | Report abuse |
  18. Farrok

    What kind of fool believes this nonsense? Marijuana is poisonous and if you use it hair will grow in the palm of your hand or your heart will stop? I think the American Public is fed up with these Marijuana Lies. Reefer Madness all over again? Reefer Madness has been going on since the 1950's - enough is enough; Americans love Marijuana and it is now an American pastime to smoke pot for Medical reasons, Spiritual reasons or just for Pleasure.

    April 25, 2014 at 22:10 | Report abuse | Reply
    • Eeyore

      Aren't you the moron who posted that wine is the result of "filth"?

      April 26, 2014 at 02:15 | Report abuse |
  19. Brzl Frbr

    I just love to see the automatic trashing of any criticism of pot. Not.

    Marijuana advocates are often as knee-jerk reactionary as any gun nut is of his second amendment rights. There are problems with EVERYTHING in human life. Nothing is perfect or totally safe. Nothing.

    That said, I'm a firm believer in medical pot, and think it should be legalized for recreational use even though I'm not a user. But acting as if something you like can have no adverse effects because you choose not to see them is freaking illogical, childish, and counterproductive.

    April 25, 2014 at 22:31 | Report abuse | Reply
    • poopmeister

      I totally agree with you. The users like me should fully realize that there are concerns with use. Of course all of us might be healthier if we didn't inhale fumes every day, vaporizing and ingesting is another story. If they made it legal for recreational use, maybe it would be easier to buy edibles and go to a vape bar or something to toke up. There are actually some statistics that came out after the decriminalization of drugs in Portugal suggesting a success and a reduction in crime (mostly because people weren't being charged with possession I assume), but never the less, anarchy didn't happen. We in the US seem to always be 20 years behind in the times....crap, gay marriage is still up for debate? There may be health concerns, or there may be benefits, but our system doen't seem to favor studies towards the benefits, which there are definitely signs of them.

      April 25, 2014 at 22:43 | Report abuse |
  20. torq

    Just so everyone knows, the rates they're reporting for people in the study who use cannabis and experience cardiovascular disease is the same as for the general public, which effectively rules out cannabis as a factor.

    April 26, 2014 at 00:13 | Report abuse | Reply
  21. Alex

    35 people in 4 years...all right...pretty sure death by domestic house cat happens more often.

    April 26, 2014 at 01:18 | Report abuse | Reply
    • noone

      My cat runs between my legs on the stairs almost every day. I'm pretty sure she's trying to trip and kill me. We need to ban these dangerous assault cats right now! Just think of the children!

      April 26, 2014 at 10:08 | Report abuse |
  22. Skirum Boy

    First of all notice there is no link to the actual study, just to an editorial ABOUT the study; so, those who know the science can not refute this. Next, let us look at the facts about heart disease (specifically CVDs) They take a couple of thousand Frenchmen who smoke marijuana and find that 2% of them had heart disease; not surprising, look what they eat, and how they drink. But, wait; in the general population it is 7.2% SO, how is having less deaths than the general population prove that pot smokers have more heart disease? Are you all mental, do you know how to Google anything?
    Data from NHANES 2009–2010 reveal that overall, 7.2% of Americans self-reported having some type of CVD (Table 2-3), including 3.2% with coronary heart disease (CHD), 2.7% with stroke, and 2.0% with congestive heart failure (CHF) (some individuals reported more than 1 condition).
    Adjusted population attributable fractions for CVD mortality were as follows6:
    —40.6% (95% CI, 24.5%–54.6%) for HBP
    —13.7% (95% CI, 4.8%–22.3%) for smoking
    —13.2% (95% CI, 3.5%–29.2%) for poor diet
    —11.9% (95% CI, 1.3%–22.3%) for insufficient PA
    —8.8% (95% CI, 2.1%–15.4%) for abnormal glucose levels

    April 26, 2014 at 04:47 | Report abuse | Reply
    • noone

      Stop using logic to refute propaganda! The propaganda doesn't have a chance. It's just not fair!

      April 26, 2014 at 10:10 | Report abuse |
  23. Murder & suicide after pot use

    Colorado has already had one suicide and one murder caused by pot. Now a possible link to heart disease. More medical research will be coming out and the users will be like the cigarette companies denying for years that there are problems.

    There's really only one reason users are for pot – THEY LIKE TO GET HIGH!

    April 26, 2014 at 06:32 | Report abuse | Reply
    • noone

      Oh the horror! 2 whole people with deaths dubiously linked to cannabis out of how many, millions? Using you logic, just about everything should be illegal, because someone's death might be linked to it. And exactly what is wring with getting high, so long as you aren't endangering anyone except, arguably, yourself?

      April 26, 2014 at 10:05 | Report abuse |
    • Murder & suicide after pot use

      This is 2 deaths in only 4 months of legalization in Colorado. There's nothing dubious about these deaths links, it was direct.

      April 26, 2014 at 14:08 | Report abuse |
    • Kurtis Clementine

      Your an idiot

      April 26, 2014 at 19:01 | Report abuse |
  24. midas360

    I find it hilarious that since the legalization of marijuana in a number of states, the media feels the need to come out with all these bogus medical claims. Everything we do in life can affect our heart. Caffeine affects our heart. The medications people take can affect our heart. Marijuana is legal, get over it.

    April 26, 2014 at 10:24 | Report abuse | Reply
  25. RE

    Marijuana is the most researched substance on the planet and the only harm is using it too young, like alcohol, except it doesn't kill you like alcohol and make a fool of you as alcohol does.

    April 26, 2014 at 11:49 | Report abuse | Reply
  26. dajowi

    It's really nice that so many people are concerned about the health and well being of people who smoke (or may start to smoke) marijuana. Are they just as concerned about those people who participate in other activities which may seriously injure them through accident or disease? Or is it just marijuana that irks them?

    According to the CDC alcohol kills 75,000 people a year and injures thousands more due to traffic accidents. Are the people who are arguing against marijuana's unproven negative health effects riling against the dangers of alcohol? Or is it just marijuana that irks them?

    What about all the rest of the self inflicted causes of heart disease and disease in general. Are they up in arms about those substances and activities? Or is it just marijuana that irks them?

    April 26, 2014 at 13:27 | Report abuse | Reply
  27. fedupwithamericanpolitics

    Just more Government Lies. Think that all the Prescription Opiated Pain killers that U.S. doctors are dealing doesn't destroy your heart? Guess again. Tobacco Kills you, Cannabis extends life. Especially when dealing with such a stressful lying government and it's media stooges.

    April 26, 2014 at 14:22 | Report abuse | Reply
  28. Jayakumar

    Am I surprised.. Absolutely not. Anything smoked through your nose that in turn drives your heart rate up, should be bad for everything in your body. Now where have we heard all this before? Hah... of course tobacco. Earlier tobacoo was considered the god send medicine , a cure for all, and then once studies were done, we know that it is a killer. Now nearly everyon knows that it kills. With Pot, this has not been the case, since it has been illegal for quite some time. Countries where it has been legal like Norway, Sweden are now seeing strong legislations limiting its use, due to its dangers. When will we americans learn this? After 3 decades and thousands of young lives taken..? Ban Pot NOW.

    April 26, 2014 at 14:46 | Report abuse | Reply
    • Kurtis Clementine

      Fear Monger much ?

      April 26, 2014 at 19:06 | Report abuse |
  29. David

    Just as it took time to realize cigarettes were bad, the same will happen with marijuana.
    One thing is for sure....inhaling smoke into your lungs is not healthy. Look up marijuana and bullous lung disease.

    April 26, 2014 at 17:06 | Report abuse | Reply
    • Kurtis Clementine

      Total BS – NICE TRY

      April 26, 2014 at 20:03 | Report abuse |
  30. myrtlemaylee

    And I just saw Gupta, who decided to love marijuana, do a segment on the dangers of hookahs. And then there's the blather about e-cigs that use the same technology as personal nebulizers...if scientists want more respect they should stop contradicting themselves every month depending on who funds their studies.

    April 26, 2014 at 17:28 | Report abuse | Reply
  31. Woodstock

    I hope they factored in a control group that ate only heart healthy munchies!!!!!

    April 26, 2014 at 20:09 | Report abuse | Reply
  32. Murder & suicide after pot use

    Richard Kirk, 47, bought two marijuana edibles Monday, the night he is accused of shooting his wife, Kristine Kirk, in the head, to a search warrant issued in the case.

    Wyoming college student Levy Thamba Pongi, 19, jumped to his death at a Denver hotel on March 11 after eating more of a marijuana cookie than was recommended.

    April 26, 2014 at 20:56 | Report abuse | Reply
  33. South Brooklyn

    let's look at some numbers. WHO estimates there are 120 to 700 million users of cannabis worldwide. this article cites 35 cases of heart complications over a 4 year period or almost 9 cases a year. even if you take the lower estimate by WHO of 120 million this is a heart complication rate of about 1 in 13 million cannabis users. therefore, another way of reporting this data would be to say that cardiac complications from cannabis use are extremely rare. cannabis as an independent risk factor appears to pose no significant risk for cardiac complications. that would be the truth about the data cited in this article.

    April 26, 2014 at 21:30 | Report abuse | Reply
  34. norm

    35 patients in four years? That's it?!?!? Do you have any idea how many tens of thousands of heart attacks occur within four years in that city?!?! YAHOOO! Best news I've heard all year without a doubt... a relief, the headline had me scared.

    April 27, 2014 at 00:54 | Report abuse | Reply
  35. SixDegrees

    This "study" redefines pointlessness. The sample is miniscule. They don't even bother comparing the results to a population of non-users.

    I don't think for a minute that smoking pot, or anything, is good for you. But this study is rubbish, and should never have been accepted for publication to begin with.

    April 27, 2014 at 06:03 | Report abuse | Reply
  36. mac101

    Typical bad science reporting from CNN. Is it the effects of inhaling the products of burned marijuana cigarettes that causes the cardiac disease, or is it the actual active THC? We'll never know, because the author of the article doesn't bother to specify the facts, just the sensational headline.

    Did the so-called scientists who studied this issue separate out ingested THC vs. inhaled THC? We'll never know, because the author of the article didn't bother to specify the facts, etc, etc.

    A high school freshman could do a better job of researching and writing.

    April 27, 2014 at 09:12 | Report abuse | Reply
  37. steve

    Wonder how much it costs to print a prohibition propaganda ad in a major medical journal?

    April 27, 2014 at 09:59 | Report abuse | Reply
  38. Farrok

    This article is hogwash; you'r in more danger from a meteor strike then from smoking a joint. When is Washington going to wise up? It's like a broken record on this issue. Everyone knows Washington is lying and if it's lying about Pot what else is it lying about?

    April 27, 2014 at 10:17 | Report abuse | Reply
  39. hiimback1

    Wow. There is controversy on this issue even after the matter has been decided legally.
    1. Look, we all know this. Marijuana is less damaging than many other harder drugs, and has different effects, but this doesn't mean you should smoke it all day.
    2. There are health risks to everything, even drinking too much water, so naturally there will be issues.
    3. We should stop arguing after studies have been done. One could argue that these studies are biased, and counter-studies and arguments would then be commonplace. If you're going to call a study phony, don't just blatantly insult it, find evidence (credible evidence) against it.
    4. How much slander can we possibly take? Can anyone find a real meaningful insult that relates to the matter at hand? I'm finding so little mentions of "pothead" and "fear monger," it's all just insulting worthlessly.

    April 27, 2014 at 21:14 | Report abuse | Reply
  40. kken

    Whose idea was it to take weed mainstream and create the very laws that have caused more deaths than marijuana ever will in history? This country is responsible for creating those bad laws. The American people.
    The the leadership of many nations strong armed by the US has perpetuated thousands of deaths in this nasty drug war.These deaths that has been brought about by men. Not weed. Are thousands of deaths by bullets acceptable but OMG we are still waiting for a weed related fatality, Please stop this ignorant loss of life and let's deal with legal marijuana. We are the ones the made it an issue and caused all the death.
    The fight the prohibitive laws created has been absurd.Tens of thousands of Mexican and Americans poor impoverished people are dead because ignorant laws have allowed organized crime to flourish. what is wrong with this whole picture? If it had been legal and not controlled or outlawed from the beginning I doubt if it would be so prevalent in American society today. Shame on the US Government for being so right wing ignorant. Weed has been smoked forever. Only this system of Government deems it okay to allow atrocities to happen to poor people just to be in control of the MONEY It is truly a bad mark in American history moving forward and I am not alone in this belief!
    I retired from an American Aerospace engineering career at 56. I now live in Mexico. I am ashamed that my generation could not find a peaceful solution to this issue! It was greed that has done all of this not protecting any people obviously! What are we sending these people into office to do? How much weed does it take to kill 80,000 Mexicans?As much as America can smoke righ?

    April 27, 2014 at 23:44 | Report abuse | Reply
  41. Richard

    William F Buckley was right. Legalize all drugs, make them freely available. For a year, you'd have bodies littering the streets. But after that, the hard-core addictive types would be gone, and the majority of the drug problems over.

    April 28, 2014 at 05:12 | Report abuse | Reply
  42. TexasSteve

    Inhaling smoke into your lungs is bad for you? Ingesting foreign mind-altering substances is bad for you? Who knew?

    April 28, 2014 at 07:08 | Report abuse | Reply
  43. Justin Leiby

    Sloppy, biased reporting. Read the study. The post concerns a study in which patients have average age of 34, yet begins with the line "Young people who use marijuana may be at risk for heart attacks and other serious cardiovascular problems, a new study suggests." In what world is 34 a "young person?" The study itself draws conclusions based on cardiac problems existing in 35 out of 1979 cannabis-related patients (1.8%), and in 20 of those 35 cases the study reports evidence that patients were also using other dangerous substances including alcohol, tobacco, cocaine, etc.

    April 28, 2014 at 11:04 | Report abuse | Reply
  44. Troy

    The propaganda has been heavy the last couple of weeks. Fortunately, others have been quick to point out flaws in the methodology that invalidate the conclusions.: "New Study Tells Nothing About Marijuana’s Role in Heart Disease – See more at: http://blog.norml.org/2014/04/24/new-study-tells-nothing-about-marijuanas-role-in-heart-disease/#sthash.6R3zLYjy.dpuf

    April 28, 2014 at 13:00 | Report abuse | Reply
  45. 10 Year Olds Sold Pot At Colorado School

    (Reuters) – Two 10-year-old boys in Colorado were caught selling and swapping marijuana that they pilfered from their grandparents' supplies of legally purchased pot in separate incidents at the same school, a district official said on Wednesday.

    April 30, 2014 at 00:33 | Report abuse | Reply
  46. Lena Polk

    I think it's bad for young people cause they might die earlier like my friend took it he died

    May 2, 2014 at 11:46 | Report abuse | Reply
  47. JustinHale

    I see these headline stories about this or that "research" that claims some health hazard from using cannabis and the actual story and the research fail to prove anything,but it sure makes for sensational headlines. The research that I rely on is MY own experiance. I have been around MJ users since 1965,now almost 70 I see most of my Baby Boomer friends who use MJ regularly are a pretty healthy lot.

    May 7, 2014 at 13:28 | Report abuse | Reply
  48. Stephen Daniel

    CNN is a business and like other businesses they get paid to post propaganda stories. The DEA and NIDA are mandated by law to promote as much lies and propaganda they can afford from our hard earned tax dollars. They already came out in the media and said they would be pushing bogus studies left and right to dedicate the public on the safety of marijuana. I got a story for you. Let us compare with real scientific method how dangerous man made sugar, junk food, pretty much all the stuff in the grocery store besides the outer island fast food is. I can guarantee it is far more dangerous than marijuana on it's worst day. Food kills over 1,000,000 people per year. Marijuana 0. So go stick this propaganda piece where the sun don't shine and use it for toilette paper because that is the worthiness of this type of piece..

    May 7, 2014 at 13:37 | Report abuse | Reply
  49. Drew

    This is the dumbest article ever. Really? Weed can cause heart attacks(never which one has been recorded). Ummm, is Tylenol good for your heart? What about all the other prescribed drugs that the media endorses? Energy Drinks? Advil?

    You guys are SOOO smart for realizing taking marijuana is more likely to give heart trouble than those who don't... LOL REALLY... Harvard like stuff here! But hate to break it to ya, almost any kind of medication is more likely to put your heart at risk rather than you NOT TAKING IT...

    Lol this is like saying "You are more likely to get liver problems when you drink." REALLY? O MAJOR BREAK THROUGH THERE! Idiots... LMFAO

    May 7, 2014 at 15:04 | Report abuse | Reply
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