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. Joe Purtee

    The scientifically proven fact that smoking leads to heart disease and death should not surprise us. One of the biggest astro turf campaigns in this country is the BS the drug legalization people spread. But of course they won't listen to this study either. It doesn't support their argument that pot is just a harmless plant – like tobacco.

    April 23, 2014 at 18:48 | Report abuse | Reply
    • Holly

      Holy hell, Jeopardy, did you read the article?! "Scientifically proven fact?" The study only suggests more study needs to be done. They found reasonable proof there could be a connection. And are you suggesting tobacco is "a harmless plant" in your final sentence? There are many more studies on tobacco use and the dangers associated with it, which other reasonable proofs show do exist. I can't tell if you have an agenda beyond trolling, but wow, what a smoke blower you are!

      April 23, 2014 at 19:00 | Report abuse |
    • Edwin Erickson

      Dude, I have been smoking pot since 1967. My heart is just fine. I am 71 now and use marijuana for medicinal reasons {|; This is just another frantic attempt to prove marijuana is bad by the anti-pot crowd, including the American Medical Association. And stupid CNN.

      April 23, 2014 at 20:54 | Report abuse |
    • Eeyore

      Holly, were you stoned when you wrote that post? Because if not, you really aren't terribly smart.

      April 23, 2014 at 22:13 | Report abuse |
    • Ant

      Smoking is the problem, not marijuana. Use a vaporizer or cook it into food to ingest it and I'm willing to bet any links to heart disease will disappear.

      April 23, 2014 at 22:22 | Report abuse |
    • billbfit

      Heart palpitations are not a good thing, and everyone knows that at the very least weed causes those in people. It's clearly not harmless, but neither are a lot of things.

      April 23, 2014 at 22:42 | Report abuse |
    • NyteShayde

      There wasn't even reasonable proof!! They found 35 people out of...how many? Oh, it doesn't say! In a two year time span they found...


      April 23, 2014 at 23:02 | Report abuse |
    • Nadine

      Cannabis has been used for over 500 years and there have been no cases of serious harm contributed directly and solely to the cannabis. You would have the same 35 cases in 4 years as part of the normal population. 35 cases out of probably the 5 million consumers are the same as you would find in alcohol or tobacco use. Tobacco is not a harmless plant, Joe Purtee. Alcohol has more problems but it is legal in most areas, so those problems are swept under the rug.

      April 23, 2014 at 23:10 | Report abuse |
    • greentiger90402

      Let's say that this study turns out to be true and Marijuana does increase the risk of heart problems. So do hamburgers, fries, milkshakes, ice cream, chocolate bars and soda. By the way, you didn't read the article because it does NOT say that this study proves anything. Plenty of people smoke pod and are fine, just like plenty of people eat ice cream and are fine. The anti-drug movement is led by criminals who make huge profit margins as long as drugs are illegal, private prisons, the DEA that counts on enforcement money, and people who lack self control and therefore blame drugs for their own short comings.

      April 23, 2014 at 23:28 | Report abuse |
    • WD

      There are other forms of ingestion besides smoking, all of which have none of the side effects or medical conditions discussed in this article.

      April 24, 2014 at 00:08 | Report abuse |
    • Hutz

      35 cases out of over 1900 in that study and they say the percentage is rising. Lets see, perhaps the percentage is rising because people are more willing to admit that they smoke pot. Also, out of those 35 people HALF had a family history of heart problems. This doesn't even consider the fact that pot smokers can generally be lazy and that it's SMOKING that causes the issues, not the plant iteself. Read the study people, it's BS.

      April 24, 2014 at 10:06 | Report abuse |
    • ERIC

      Turns out that a lot of oral cancers that were "proven" to be caused by tobacco were actually caused by HPV. Incidents of lung cancer and heart disease decreased with the smoking rate, but not oral cancers.

      The only thing worst than junk science is the people who believe every headline they read, without question. This wasn't a research study. Just an unexplained anomalies. No cause and effect has been proven. Just a hypothesis.

      How many "studies" have we seen, claiming that eggs were bad for your heart...then good...then bad again...then good again? Which brings up the next question. How many eggs did these people eat?

      April 25, 2014 at 13:21 | Report abuse |
  2. Dave Milner

    So what? Eating red meat, cheese, and ice cream will kill you.

    April 23, 2014 at 18:56 | Report abuse | Reply
  3. Steve

    35 people in the study... Hardly headline-worthy. Correlation does not equal causation. Besides, there's no mention of the eating habits. Was there excessive consumption of unhealthy foods among the subjects? Potheads DO get the munchies, rarely do the munchies involve only a glass of water with a kale salad. Poor eating habits are DEFINITELY linked to heart disease. Coincidence?

    April 23, 2014 at 18:57 | Report abuse | Reply
    • Janice

      If you read the whole article you would realize that they said that not enough is known, that these results could be from underlying, unknown heart conditions. And they also said that it was a shame that more was not known about the subject. They admitted that their findings were shaky, and expressed distress over it. Of course they realize that correlation is not causation. Read the whole article.

      April 23, 2014 at 22:29 | Report abuse |
    • NyteShayde

      Jebus...THANK YOU. You're about the only reasonable individual that caught that. Marijuana is eeeeeeevil!!

      April 23, 2014 at 23:03 | Report abuse |
    • Nadine

      Steve – you would get 35 people out of any kind of eating pattern, smoking or none-smoking, drug or no drug taking populace. 35 people has no importance of any sort. Statisticians would call them an outlier. Marijuana is Not evil, as some comments have stated. It goes along the same line as the argument about guns. It is not guns that kill people, people kill people. Marijuana is not what kills people. Marijuana has been used for years for many medicinal purposes, including as a tea for the relief of women's monthly cramps. Now, you talk about alcohol and the only thing that is good for is to sterilize equipment or prevent infection of wounds. Alcohol does kill by itself.

      April 23, 2014 at 23:17 | Report abuse |
  4. 333maxwell

    I am still waiting for the Breasts they promised Marijuana would give us men, from their study back in the 70's.

    April 23, 2014 at 18:57 | Report abuse | Reply
    • Stephen

      ROFL. I too am waiting for my breasts to come in. Until we make Alcohol and tobacco illegal for their detrimental effects I have decided to continue to do as I see fit with my own body.

      April 23, 2014 at 22:54 | Report abuse |
    • Stay Blown

      I just have to say if this was real then I would be dead about 150,000 rolled ones ago, a little cypress square hasn't hurt me or any of my friends in 40+ years. Truth be known a lot more people smoke then you think in all professions.Know matter the race, as we are all human and the same. Sit back and relax and enjoy some zoning to yourself. Relax, the world would be a lot better if everyone shared a few daily.

      Iphone? Microsoft? How else did they think of new ideas.

      April 23, 2014 at 23:31 | Report abuse |
  5. GOP Prayer

    The GOP Prayer/Mantra/Solution: Dear God...With your loving kindness, help us to turn all the Old, Sick, Poor, Non-white, Non-christian, Female, and Gay people into slaves. Then, with your guidance and compassion, we will whip them until they are Young, Healthy, Rich, White, Christian, Male, and Straight. Or until they are dead. God...Grant us the knowledge to then turn them into Soylent Green to feed the military during the next "unfunded/off-the-books" war. God...Give us the strength during our speeches to repeatedly yell........TAX CUTS FOR THE RICH!!!..........and........GET RID OF SS AND MEDICARE!!!
    In your name we prey (purposely misspelled, or is it?)........Amen

    April 23, 2014 at 18:59 | Report abuse | Reply
    • justamaz

      Having insecurity problems again?

      April 23, 2014 at 20:26 | Report abuse |
    • Spreading

      Spreading the GOP "love" for the Old, Sick, and Poor never gets old. Read the Ryan budget to see what the GOP want to do to the Old, Sick, and Poor people. /sarcasm off

      April 23, 2014 at 21:09 | Report abuse |
    • Janice

      Clearly you don't understand the Republican stance and are just throwing out biased, unbased, unfounded claims. Go ahead. Say what you will. I'm against the Republicans and even I can see that this is a load of melarcky.

      April 23, 2014 at 22:30 | Report abuse |
    • Crystal Clear

      @Janice – I understand the GOP crystal clear. Haven't you read the Ryan budget? It explains in detail what they want to do to the Old, Sick, and Poor people.

      April 24, 2014 at 08:36 | Report abuse |
    • ERIC

      William Randolph Hearst, elected twice as a Democrat, is credited with outlawing marijuana.

      April 25, 2014 at 17:32 | Report abuse |
  6. random poster

    35 cases in four years. Wow that's almost as bad as how many loose carpets cause sprained ankles. Actually I think carpets are more dangerous.

    April 23, 2014 at 19:05 | Report abuse | Reply
    • halloween3

      Well said. Just another "junk medical science" article.

      April 23, 2014 at 20:30 | Report abuse |
    • Nadine

      Amen. And I like the name.

      April 23, 2014 at 23:19 | Report abuse |
  7. Concerned citizen

    It is very hard to believe anything that the media puts out concerning pot smoking. This is not because we are stupid pot smokers who want to believe what we prefer. It is because from the very beginning of the prohibition of pot the public has been fed stories like "Your babies will be deformed" etc. This is not some made up B.S. I was there. The timing of this article fits in with the flood of negative advertising that is being produced right now to combat the growing trend of legalizing pot. That is all it is. To the "War on Drugs " industry: F-off...You tried and you failed....The lesson is never try.

    April 23, 2014 at 19:06 | Report abuse | Reply
  8. john

    Did they mention 20 out of the thirty something test subjects smoked tobacco? Tobacco which Is proven to cause heart problems couldnt of had an effect could it?

    April 23, 2014 at 19:17 | Report abuse | Reply
  9. 333maxwell

    I'm still waiting for the breasts they promised marijuana would give men back in the 70's.

    Or the other study that said I would now have decreased testosterone.

    Or the other study that said I would now likely be doing heroin.

    Or the other study that said I would get fungus infections from long term use.

    Or the other study that said I would go schizophrenic (believe or not, that was started back int eh 70's too, nothing new under the sun there with that line of attack).

    Or the other study that said it caused fetal damage (that one kind of slipped off the map after it made the rounds).

    Or the other study from before I was even born, that said I would kill my family in psychosis, because that is the fate of most marijuana users (Mr Ainslinger testified to this 'fact' in front of Congress).

    Or the other study that said, and this one is fun as it was put out right when the big salmonella scare was happening with Sizzler Steak House and their plastic salad tubs, marijuana had the potential to carry salmonella and we suspect many more poisonings in the near future.

    Or the other study from 1977 that had Dr Jones saying by 1990 we can expect an entire nation of schitzos from marijuana use. He also said it was conclusive it caused DNA damage (which was another doozy).

    Or the other study from 1980 that said we smoke so much stronger pot now, that by 1990 we can expect to see marijuana related birth defects through the roof.

    Or the other study from 1980 that said marijuana smokers who smoke for more than 10 years, are found to not be able to reproduce.

    To be fair they already have SAID marijuana was going to give up all heart attacks.. I started smoking in 1964 and have friends for decades and none of us yet (luck, DNA, knock on wood) are dead from heart attacks yet.

    I can go on and on.. There is NOTHING new under the sun here.. Think I am joking? take a look at the headline from 1972 and tell me how much things have changed.

    April 23, 2014 at 19:21 | Report abuse | Reply
    • Steve in Vermont

      Here, here. I smoked for 25 years and my heart and lungs, cholesterol are just fine, thank you. I don't smoke cigarettes or eat much junk food or soda. I only get the munchies when I'm not high. So there. And I have good genes (in some ways).

      April 23, 2014 at 22:29 | Report abuse |
  10. Max Sativa

    Reefer Madness.

    35 people in 5 years? And 7 had known pre-existing conditions. Sounds more like pot helps prevent heart disease. My cardiologist puts in more stents in a week, a lot more.

    Anytime you see a study without a control group it is total rubbish. I expect we will see more of this "Reefer Madness" as Big Booze and Big Pharma continue to see sales slip downward.

    April 23, 2014 at 19:58 | Report abuse | Reply
    • Janice

      Saying that pot prevents heart disease is unbased. And the study openly stated that the connection was mediocre at best, that they didn't have enough evidence to prove one way or another. Read the whole article before jumping to conclusions. This was not a control group. These were 35 unrelated cases that these people studied.

      April 23, 2014 at 22:33 | Report abuse |
    • NyteShayde

      Janice, why are you defending a correlational study (at worst)? The headline was misleading. The criticism is warranted.

      April 23, 2014 at 23:07 | Report abuse |
  11. Holly Whittaker

    Are you kidding it's fox news trying to tell lies again! How about a study of people that have smoked their whole life. I don't have heart disease how many hands do I see out there? A pot smoker no heart disease. Ya what the other guy said red meat cheese, A pot smoker might eat all that which leads to heart disease itself alone. Lame -o report and article fox news,you've done it again, put the right wing twist to false findings,good job and reporting. cannareport@twitter

    April 23, 2014 at 20:06 | Report abuse | Reply
    • Mary T

      Excuse me but this is CNN's website and not Foxnews' website.

      April 23, 2014 at 22:34 | Report abuse |
  12. MDS

    This "study" is not a study where direct observations were made in a controlled environment as to the effects of cannabis on the cardiovascular system. Nothing about the study was controlled. 21 of the 35 reporting problems smoked tobacco, and 16 of the 35 had a history of heart disease, 9 personal and 7 hereditary. The study doesn't seem to take a meandering look at the primary cause of heart problems, the patients' diets. Granted, I don't think cannabis typically brings out the best diets in people and it's definitely plausible that some cannabis users are at a greater risk of heart problems on account of their diets, but even in that case, the blame falls on personal dietary choices. By all means, research anything before you put it into your body or recommend it to others, but please do an honest legitimate study instead of slinging dirt when nothing else will stick.

    April 23, 2014 at 20:44 | Report abuse | Reply
    • Janice

      You seem intelligent. So you should realize that they were not running a bogus study. They said that they didn't have enough information, that they couldn't do a proper study because cannabis use is under reported, and illegal in most places. These people were offering an apparent connection, and warned that they didn't know for sure.

      April 23, 2014 at 22:35 | Report abuse |
    • ERIC

      They didn't have enough information to make any conclusions...but the media did.

      April 25, 2014 at 17:36 | Report abuse |
  13. Judy J

    If there is any truth to this article at all, I would question as to whether the marijuana smoked had mold and that caused the heart problems.

    April 23, 2014 at 20:49 | Report abuse | Reply
  14. stel1776

    Cannabis does not increase heart attack risk in those without cardiovascular disease (anything that raises heart rate can increase risk in these individuals):

    "Although marijuana use does not appear to be associated with mortality among the general population, our results suggest that it may carry particular risks for vulnerable populations with established cardiovascular disease."
    Mukamal et al. An exploratory prospective study of marijuana use and mortality following acute myocardial infarction. Am Heart J. 2008.

    A 2013 analysis of 3,886 myocardial infarction survivors over an 18-year period showed "no statistically significant association between marijuana use and mortality".
    Frost et al. Marijuana use and long-term mortality among survivors of acute myocardial infarction. Am Heart J. 2013.

    Cannabis is not associated with greater mortality in general:

    "Marijuana use in a prepaid health care-based study cohort had little effect on non-AIDS mortality in men and on total mortality in women."
    Sidney et al. Marijuana use and mortality. Am J Public Health. 1997.

    April 23, 2014 at 21:37 | Report abuse | Reply
  15. DZ313

    Willie Nelson to turn 81 on Tuesday.
    Heart attacks – 0

    It's that dangerous.

    April 23, 2014 at 21:52 | Report abuse | Reply
  16. Jack Handy

    "Researchers reviewed records from the French Addictovigilance Network"


    April 23, 2014 at 22:02 | Report abuse | Reply
  17. Shawn

    Now for all the posts defending pot as completely harmless. No matter the reality. Here is the simple reality: Smoking ANYTHING is harmful to your health. Smoke is not supposed to be in your lungs. From any source. Including coal from your BBQ smoker.

    April 23, 2014 at 22:06 | Report abuse | Reply
    • Jonathan L.

      t doesn't matter. Good...Bad...somewhere in between. The fact is NO one has the right to tell an adult they can not grow or smoke it. If it remains illegal, then they need to outlaw alcohol immediately. I don't even smoke but the drug laws are insane and an abuse of power. It is none of their business or concern if an adult chooses to smoke.

      April 23, 2014 at 22:22 | Report abuse |
    • Jonathan L.

      It is much less harmful and intoxicating than alcohol.

      April 23, 2014 at 22:23 | Report abuse |
    • Eeyore

      Do you have any cite for that, Jonathan? Or is that just what you believe?

      April 23, 2014 at 22:30 | Report abuse |
    • Janice

      Finally someone gets it... It doesn't matter what smoke you are inhaling. Blocking the flow of clean oxygen to your lungs, and then to your brain, has adverse affects. Even, like you said, coal smoke from your BBQ. ANYTHING smoked is bad for your lungs, your throat (ashes inhaled can burn tissue and scar it), and your brain (brain cells are lost when tainted oxygen reaches your brain).

      April 23, 2014 at 22:37 | Report abuse |
    • Recalcitrant Truth Seeker

      They have these things called vaporizers now. You see, you can run hot air over pot at a high enough temperature to vaporize the thc molecules, but not combust the plant matter. You can also cook with it, another way to avoid carcinogens.

      But even smoking it, while risking respiratory problems like asthma, doesn't cause cancer like tobacco.

      April 24, 2014 at 00:05 | Report abuse |
    • Eeyore

      There is not enough evidence to support that, Recalcitrant. There haven't been enough long-term studies of pot smokers to say that it doesn't cause lung cancer. What part of that don't you get?

      April 24, 2014 at 09:16 | Report abuse |
  18. thebohemiangirl

    Of course the French would report this! They want Americans buying their wine; not buying recreational pot from local growers!

    April 23, 2014 at 22:07 | Report abuse | Reply
  19. the_dude

    Pot smokers are like gun owners. Man, don't try and take away their stuff....

    April 23, 2014 at 22:08 | Report abuse | Reply
    • abcontador

      so true, they get pretty riled up, makes you wonder if its really psychologically addictive (read crutch)

      April 23, 2014 at 22:34 | Report abuse |
  20. pot smoker

    I have smoked pot everyday for 30 years!!! I am not brain dead nor do I have heart problems. My only problem is munchies.

    April 23, 2014 at 22:16 | Report abuse | Reply
  21. unclegod

    I find it significant that there's no mention about usage of other drugs by the patients in the study. Not all pot smokers use only the one drug – cocaine or amphetamines could have played a role – likelier than marijuana. I also have been toking for over 50 years, and have no cardiac issues at all.

    April 23, 2014 at 22:16 | Report abuse | Reply
    • puddintane

      I find it pretty obvious beings how the study is about dope, not other drugs. But of course the tried and true distraction any generic addict will apply is deflection, adding red herrings, straw persons, whatever you want to call them. "B-b-b-b-ut alcohol is worse, alcohol kills, alcohol this and that, Advil is lethal, blabla"
      The topic is that too much dope over a long period of time may be unhealthy, and if you care about yourself as much as you claim, maybe you're going to have to lay off the dope. "But alcohol, but its deadly blabla"

      April 23, 2014 at 22:56 | Report abuse |
  22. Yoyo

    How much did a pharmaceutical company pay to get this headline on the front page?

    April 23, 2014 at 22:17 | Report abuse | Reply
  23. Jonathan L.

    It doesn't matter. Good...Bad...somewhere in between. The fact is NO one has the right to tell someone they can not grow or smoke it. Not police, government, etc. etc. They do not have the right. It is none of their business or concern. You can not tell a grown adult they can't smoke or grow it. That is insane and complete abuse of power. I don't even smoke but it infuriates me it is still illegal and people are still being arrested. If pot is illegal then they better outlaw alcohol immediately.

    April 23, 2014 at 22:19 | Report abuse | Reply
    • puddintane

      Dopers don't have the right to force abstainers from paying their health care bills caused by unhealthy living. Oh but thats different, you did it to keep freedom alive bla bla

      April 23, 2014 at 22:52 | Report abuse |
    • Nadine

      puddintane – "Dopers don't have the right to force abstainers from paying their health care bills caused by unhealthy living."
      Are you saying that people who drink alcohol or smoke cigarettes or cigars don't have the right to force abstainers from paying their health care bills caused by their unhealthy living?

      April 23, 2014 at 23:30 | Report abuse |
  24. Smarter than ewe

    As a frequent pot smoker, this article was a real buzz kill.

    April 23, 2014 at 22:22 | Report abuse | Reply
    • 1776usa2016

      The study is completely bogus.

      April 23, 2014 at 23:01 | Report abuse |
  25. Mike

    Bottom line, is, marijuana is a drug, so is advil. That being said, do you do advil everyday, or when you really need it? Smoking pot everyday will shorten your life span, no doubt, but maybe you would rather live fast, die young anyways.

    April 23, 2014 at 22:25 | Report abuse | Reply
    • Stay Blown

      Willie Nelson? Heck breathing the air outside and inside 90% of homes will kill you. Fact is something is going to get you at some point. Tonight, Tomorrow, next week, next year or 100 years from now. When your called it's over in someway. Better then being drunk all the time. Then again mu Doctor thought it was cool when I went in High and she smelled it, she asked to check my eyes and didn't find anything different acting, yeah bodies adjust. And yes I have had a very nice life. Thank out of the box.

      April 23, 2014 at 23:38 | Report abuse |
    • Dolly

      Pot is a plant. it's not a drug.

      April 24, 2014 at 09:19 | Report abuse |
  26. David

    I dont believe it

    April 23, 2014 at 22:27 | Report abuse | Reply
    • Stay Blown

      2 days after 4/20? I say yeah right and enjoyed protesting this old old school thinking with a tight one.

      April 23, 2014 at 23:40 | Report abuse |
  27. ELMO

    To funny. Its called tachycardia and some not all strains of cannabis can induce it at a rate as frequent as cotton mouth to some not all people. If you have an existing cardiac condition it could be dangerous. As with most THC symptoms they pass in no more than 30 min except for the buzz.

    April 23, 2014 at 22:27 | Report abuse | Reply
  28. audiohouse2014

    I am disappointed to see this type of propaganda on CNN, but I guess it was only a matter of time.

    April 23, 2014 at 22:30 | Report abuse | Reply
  29. abcontador

    I always suspected this - every single time I ever smoked out, my heart would pound really hard and sometimes erratically, scared me out of using it acutally

    April 23, 2014 at 22:31 | Report abuse | Reply
  30. Richard

    With how much pot is smoked by young people, if this was a serious risk people under 40 would be dropping left and right. I know a lot people who smoke insanely massive amounts of marijuana and I don't know of any of them having any heart conditions and certainly nobody I know who is a heavy smoker has suffered a heart attack.

    April 23, 2014 at 22:32 | Report abuse | Reply
  31. Mike

    I've smoke regularly, for over 45 years. No stroke or heart failures yet. Knock on wood...

    April 23, 2014 at 22:34 | Report abuse | Reply
    • Stay Blown

      I second the 45+ years. Motion passed

      April 23, 2014 at 23:41 | Report abuse |
  32. stevetall

    B.S., and not only that, way to go, CNN. Trying to make yourselves even less reliable as a news organization, eh? Snap out of it. Please at least try to give us the impression that you are screening the crap from the real news.

    April 23, 2014 at 22:35 | Report abuse | Reply
    • Stay Blown

      4/20 was two days ago, world pot day

      April 23, 2014 at 23:42 | Report abuse |
    • Stay Blown

      OK 3 days ago. LOL

      April 23, 2014 at 23:43 | Report abuse |
  33. Stephen Daniel

    "The anti-marijuana campaign is a cancerous tissue of lies, undermining law enforcement, aggravating the drug problem, depriving the sick of needed help, and suckering well-intentioned conservatives and countless frightened parents.
    Narcotics police are an enormous, corrupt international bureaucracy ... and now fund a coterie of researchers who provide them with 'scientific support' ... fanatics who distort the legitimate research of others."
    ~ William F. Buckley, Jr. Requiescat In Pace
    Commentary in The National Review, April 29, 1983, p. 495

    – See more at: http://www.thomhartmann.com/forum/2013/08/nidas-nutty-noras-tax-paid-gossip#sthash.zfg88NbA.dpuf

    April 23, 2014 at 22:40 | Report abuse | Reply
    • puddintane

      Talking to yourself about yourself

      April 23, 2014 at 22:48 | Report abuse |
  34. Marty

    More scare tactics. Breathing air and living is going to kill you one day. We probably better stop breathing before it kills us all.

    April 23, 2014 at 22:40 | Report abuse | Reply
  35. sikologik

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

    What an absolutely useless statement. Lots of numbers, but no way to correlate them, and one of those numbers- 34- is at best extremely peripheral to the rest of the sentence.

    I wonder if Dr. Gupta walked to work or packed his lunch.

    April 23, 2014 at 22:41 | Report abuse | Reply
  36. johnny


    April 23, 2014 at 22:42 | Report abuse | Reply
    • Dave

      Skip the skip up the road, off to school you go
      Don't be a bad boy, Johnny, don't you slip up or play the fool

      Oh no, Ma, Oh no, Da, I'll be your golden boy
      I will obey every golden rule...........

      April 23, 2014 at 23:21 | Report abuse |
    • Stay Blown

      One word for you.


      April 23, 2014 at 23:44 | Report abuse |
    • itsallthere

      Sounds like somebody needs a hug! Or maybe some counseling... Or maybe you are another Ft. Hood shooter just waiting to get your name in history!

      April 25, 2014 at 16:27 | Report abuse |
    • itsallthere

      Easy Johnny... Someone needs to come get Uncle Johnny and put him to bed. He has had a few too many drinks again!

      April 25, 2014 at 16:32 | Report abuse |
  37. puddintane

    Hahah undigested Doritos found in arteries of dope smokers.

    April 23, 2014 at 22:47 | Report abuse | Reply
    • itsallthere

      I beg to differ! I can't eat Doritos because I don't have enough teeth to chew them.

      April 25, 2014 at 16:33 | Report abuse |
  38. charles ginsberg

    I hope that Johnny dies a horrible and painful death.

    April 23, 2014 at 22:47 | Report abuse | Reply
    • Bubba

      Spoken like an average "Christian".

      April 23, 2014 at 22:58 | Report abuse |
    • Stay Blown

      Johnny lowered you to his level, bad Karma.

      April 23, 2014 at 23:47 | Report abuse |
    • itsallthere

      No No Charlie! Johnny just wants attention. I bet he will be the next mass murderer in this country!

      April 25, 2014 at 16:29 | Report abuse |
  39. mc_hale

    Pot people are pretty defensive – must be the weed – but really, I've never had any doubts smoking a lot of pot is not going to be the most healthy you can do for your body. How could it be? Relax, pot heads.

    April 23, 2014 at 22:49 | Report abuse | Reply
    • Stephen

      Relax. Sounds like you need a beer...

      April 23, 2014 at 23:12 | Report abuse |
    • itsallthere

      YOU need to relax! You are probably a cigarette smoking whiskey guzzling democrat who still wants to stick it to the "hippies" just like your old friend Richard (Tricky Dick) Nixon!

      April 25, 2014 at 16:18 | Report abuse |
    • itsallthere

      Did I say Democrat? I meant Republican!

      April 25, 2014 at 16:36 | Report abuse |
    • ERIC

      Democrats banned pot. Look it up.

      April 25, 2014 at 17:43 | Report abuse |
  40. Lesley

    Reading this all I see is that someone looked at a group of people who smoke pot, found that some had died of early heart failure and has announced that a study should be performed. This sounds more like someone sniffing for research grants via the media than a healthcare professional advising the public. Not sure why so much controversy over this piece – researcher wants grant money would be better heading.

    April 23, 2014 at 22:56 | Report abuse | Reply
  41. Bubba

    MaryJane sales will not be affected by this information. Potato Chips, and Fried Foods are also linked to heart problems, but this has not stopped them from becoming multi-billion dollar industries.
    Plus, people are not smoking dope for the "healthy effects" on their bodies.

    April 23, 2014 at 22:58 | Report abuse | Reply
  42. 1776usa2016

    And NONE of these problems was due to their use of marijuana.

    If you take a random sample of people you'll get about the same number who have heart related problems.

    I and millions of others have watched huge numbers of people using marijuana over the past 50 years and all these "boogeyman" studies and stories about marijuana are rubbish.


    April 23, 2014 at 22:59 | Report abuse | Reply
  43. 1776usa2016

    The New Reefer Madness coming by way of bogus studies !!


    April 23, 2014 at 23:00 | Report abuse | Reply
  44. Seth Long

    Steak, butter, bacon, pizza, and french fries also lead to heart attack and stroke. So does getting old, being overweight, and having diabetes. Everything causes heart attack and stroke now days. This study is complete BS and nothing more than "reefer madness".

    April 23, 2014 at 23:03 | Report abuse | Reply
  45. Baal

    "French Addictovigilance Network"

    Frances version of the American "Partnerforadrugfreeamerica".

    LIARS then, LIARS now

    April 23, 2014 at 23:09 | Report abuse | Reply
  46. cnimnicht2013

    "From 2006 to 2010, they found 35 reports of patients who had experienced cardiovascular complications following cannabis use."
    Oh my god! that is 7 people per year!
    Why alcohol only kills 7500 people per year, tobacco kills about 443,000, prescription drugs kills about 100000.

    April 23, 2014 at 23:10 | Report abuse | Reply
  47. autonomous

    surprise, surprise – smoke doesn't belong in our lungs…

    also, SCIENTISTS LISTEN UP: you need to investigate the effect of cannabis (components) on perception of the autonomous nervous system. we're not supposed to feel the impulses from our heart, etc in our 'aware nervous system' perception. if cannabis smoking/ingestion, etc can trigger autonomic nervous system feedback perception, it feels like a heart attack!

    that is, the signals become perceived at full blast ('turned up to 11') and are perceived as full on PAIN. this triggers panic response in the mind and body – can lead to hyperventilation, increased blood pressure, etc – could precipitate heart failure.

    how do I know this? I experienced it 3 times at ages 18 & 19. I had to give up marijuana after living through approx 18 hours (5 to 6 hours each time) of 'pain of death'. next morning I would wake up surprised to be alive (I hadn't gone to the hospital because I feared being busted).

    before this triggered I was a college student who got high every day (evangelical about pot). from my own experience: BEWARE...

    April 23, 2014 at 23:12 | Report abuse | Reply
  48. Ryan

    This article just suggests heart disease and cardiovascular problems, but that's pretty general. I'd like to know the effects that weed has on the heart and the circulatory system. Specifics. Those help. Does the heart typically palpitate and flutter when smoking the leaf? Does it affect blood pressure? Does it change blood sugar levels? Does it alter oxygen absorption in the blood? Etc. Just "heart disease" leaves so many questions. I live in Colorado and I'm tired of the negative media attention that this all receives. If this article stated solid results–as most studies and research produce–then I (the reader) can understand the "why" behind it all. Just my opinion, of course.

    April 23, 2014 at 23:13 | Report abuse | Reply
  49. Dave

    35 patients out of ? 100? 1000? 10,000,000? Chronic smokers or used it once or twice? They smoked pot and instantly had heart issues? Or did the writer not mean it to sound like that and it developed over time? I guess with all the pro pot momentum they felt like spewing some anti pot rhetoric. Considering how many people will only read the headline and won't see how shady this study (French Addictosomething? really?) seems and how weakly the article is written, it will have some effect unfortunately.

    April 23, 2014 at 23:14 | Report abuse | Reply
  50. oh please

    is WHY
    I use a

    April 23, 2014 at 23:19 | Report abuse | Reply
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