{"id":334,"date":"2025-06-18T10:43:06","date_gmt":"2025-06-18T10:43:06","guid":{"rendered":"https:\/\/blog.cedritech.com\/?p=334"},"modified":"2025-06-18T10:43:10","modified_gmt":"2025-06-18T10:43:10","slug":"marijuana-use-dramatically-increases-risk-of-dying-from-heart-attacks-and-stroke-large-study-finds","status":"publish","type":"post","link":"https:\/\/blog.cedritech.com\/?p=334","title":{"rendered":"Marijuana use dramatically increases risk of dying from heart attacks and stroke, large study finds"},"content":{"rendered":"<p><span class=\"editor-note__prefix\"><em>Get inspired by a weekly roundup on living well, made simple.\u00a0<\/em><em>Sign up for CNN\u2019s Life, But Better newsletter for information and tools designed to improve your well-being<\/em>.<\/span><\/p>\n<p>Using\u00a0marijuana\u00a0doubles the risk of dying from heart disease, according to a new analysis of pooled medical data involving 200 million people mostly between the ages of 19 and 59.<\/p>\n<p>\u201cWhat was particularly striking was that the concerned patients hospitalized for these disorders were young (and thus, not likely to have their clinical features due to tobacco smoking) and with no history of cardiovascular disorder or cardiovascular risk factors,\u201d said senior author \u00c9milie Jouanjus<em>,<\/em>\u00a0an associate professor of pharmacology at the University of Toulouse, France, in an email.<\/p>\n<p>Compared to nonusers, those who used cannabis also had a 29% higher risk for heart attacks and a 20% higher risk for stroke, according to the study published Tuesday in the\u00a0journal Heart.<\/p>\n<div class=\"caas-da \">\n<div id=\"sda-LREC1-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941\" class=\"caas-sda-benji-ad caas-sda-gam-container-mid-center caas-sda-gam-container-mid-center-small wafer-destroyed\" data-wf-benji-page-context=\"{&quot;pageUrl&quot;:&quot;https:\/\/www.yahoo.com\/news\/marijuana-doubles-risk-dying-heart-223003966.html&quot;,&quot;spaceid&quot;:&quot;1197618800&quot;,&quot;site&quot;:&quot;news&quot;,&quot;hashtag&quot;:&quot;addiction;health&quot;,&quot;lmsid&quot;:&quot;a0a6T00000R2KXGQA3&quot;,&quot;lpstaid&quot;:&quot;187345f0-9c26-329a-9f4f-acf19ad16b8c&quot;,&quot;pt&quot;:&quot;content&quot;,&quot;pd&quot;:&quot;modal&quot;,&quot;pct&quot;:&quot;story&quot;}\" data-wf-benji-wafer-config=\"{}\" data-wf-benji-config=\"{&quot;positions&quot;:{&quot;LREC1-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941&quot;:{&quot;id&quot;:&quot;LREC1-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941&quot;,&quot;path&quot;:&quot;\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center&quot;,&quot;region&quot;:&quot;viewer&quot;,&quot;size&quot;:[[300,250]],&quot;kvs&quot;:{&quot;loc&quot;:&quot;mid_center&quot;}}}}\" data-wf-trigger=\"onLoad\" data-wf-margin=\"100 0\" data-hide-ad-string=\"\">\n<div id=\"LREC1-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941\" class=\"wafer-benji-success\" data-google-query-id=\"CN73n7Pj-o0DFdUlBgAdxS08Vg\">\n<div id=\"google_ads_iframe_\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center_13__container__\"><iframe loading=\"lazy\" id=\"google_ads_iframe_\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center_13\" tabindex=\"0\" title=\"3rd party ad content\" src=\"https:\/\/923612e5e65751cfdd0fdc5ba162f1c4.safeframe.googlesyndication.com\/safeframe\/1-0-45\/html\/container.html\" name=\"\" width=\"1\" height=\"1\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" sandbox=\"allow-forms allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation\" data-is-safeframe=\"true\" aria-label=\"Advertisement\" data-google-container-id=\"1w\" data-load-complete=\"true\" data-mce-fragment=\"1\"><\/iframe><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u201cThis is one of the largest studies to date on the connection between marijuana and heart disease, and it raises serious questions about the assumption that cannabis imposes little cardiovascular risk,\u201d said pediatrician Dr. Lynn Silver, a clinical professor of epidemiology and biostatistics at University of California, San Francisco.<\/p>\n<p>\u201cGetting this right is critically important because cardiovascular disease is the top cause of death both in the United States and globally,\u201d said Silver, who is also senior adviser at the Public Health Institute, a nonprofit public health organization that analyzes marijuana policy and legalization.<\/p>\n<p>Silver is the coauthor of an\u00a0editorial\u00a0published with the paper that calls for change in how cannabis is viewed by health professionals, regulatory bodies and the public at large.<\/p>\n<p>\u201cClinicians need to screen people for cannabis use and educate them about its harms, the same way we do for tobacco, because in some population groups it\u2019s being used more widely than tobacco,\u201d she said. \u201cOur regulatory system, which has been almost entirely focused on creating legal infrastructure and licensing legal, for-profit (cannabis) businesses, needs to focus much more strongly on health warnings that educate people about the real risks.\u201d<\/p>\n<figure class=\"caas-figure\">\n<div class=\"caas-figure-with-pb\">\n<div>\n<div class=\"caas-img-container caas-img-lightbox\" data-lightbox-src=\"https:\/\/s.yimg.com\/ny\/api\/res\/1.2\/a.VAbRJALwPwxspjlxIAtQ--\/YXBwaWQ9aGlnaGxhbmRlcjt3PTE5MjA7aD0xMDgwO2NmPXdlYnA-\/https:\/\/media.zenfs.com\/en\/cnn_articles_875\/a4c6eb12bb63bf2471b7fc2679f25967\"><span class=\"caas-img-wrapper\"><img decoding=\"async\" class=\"caas-img caas-lazy has-preview caas-loaded\" src=\"https:\/\/s.yimg.com\/ny\/api\/res\/1.2\/toiodeC8xe1RZhmhXlvrEQ--\/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTU0MDtjZj13ZWJw\/https:\/\/media.zenfs.com\/en\/cnn_articles_875\/a4c6eb12bb63bf2471b7fc2679f25967\" alt=\"The higher potency of marijuana today is a growing concern when it comes to potential health harms, experts say. - juanma hache\/Moment RF\/Getty Images\" data-caas-lazy-loading-init=\"1\" \/><button class=\"link rapid-noclick-resp caas-lightbox\" aria-label=\"View larger image\" data-ylk=\"sec:image-lightbox;slk:lightbox-open;elm:expand;itc:1\" data-rapid_p=\"12\"><\/button><\/span><\/div>\n<\/div>\n<\/div>\n<div class=\"caption-wrapper caption-aligned-with-image\">\n<div class=\"caption-wrapper caption-aligned-with-image\"><\/div>\n<\/div><figcaption class=\"caption-collapse\" data-id=\"m-0\">The higher potency of marijuana today is a growing concern when it comes to potential health harms, experts say. &#8211; juanma hache\/Moment RF\/Getty Images<\/figcaption><\/figure>\n<h3>The dangers of smoke (and maybe edibles)<\/h3>\n<p>The new systematic review and meta-analysis analyzed medical information from large, observational studies conducted in Australia, Egypt, Canada, France, Sweden and the US between 2016 and 2023.<\/p>\n<p><iframe loading=\"lazy\" title=\"Marijuana use linked to increased risk of heart attack and stroke, study finds\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/QCxksl-Ie2Y?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Those studies did not ask people how they used cannabis \u2014 such as via smoking, vaping, dabbing, edibles, tinctures or topicals. (Dabbing involves vaporizing concentrated cannabis and inhaling the vapor.) However, \u201cbased on epidemiological data, it is likely that cannabis was smoked in the vast majority of cases,\u201d Jouanjus said.<\/p>\n<p>Smoking tobacco is a well-known cause of heart disease \u2014 both the smoke and the chemicals in tobacco damage blood vessels and increase clotting, according to the\u00a0US Centers for Disease Control and Prevention.<\/p>\n<p>Therefore, it is not surprising that smoking, vaping or dabbing cannabis could do the same, Silver said: \u201cAny of the many ways of inhaling cannabis are going to have risks to the user, and there\u2019s also secondhand smoke risks, which are similar to tobacco.\u201d<\/p>\n<p>The notion that smoking cannabis is less harmful because it\u2019s \u201cnatural\u201d is just wrong, Dr. Beth Cohen, professor of medicine at the University of California, San Francisco, told CNN in a\u00a0prior interview.<\/p>\n<p>\u201cWhen you burn something, whether it is tobacco or cannabis, it creates\u00a0toxic compounds,\u00a0carcinogens, and particulate matter that are harmful to health,\u201d Cohen said in an email.<\/p>\n<div class=\"caas-da \">\n<div id=\"sda-LREC3-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941\" class=\"caas-sda-benji-ad caas-sda-gam-container-mid-center caas-sda-gam-container-mid-center-small wafer-destroyed\" data-wf-benji-page-context=\"{&quot;pageUrl&quot;:&quot;https:\/\/www.yahoo.com\/news\/marijuana-doubles-risk-dying-heart-223003966.html&quot;,&quot;spaceid&quot;:&quot;1197618800&quot;,&quot;site&quot;:&quot;news&quot;,&quot;hashtag&quot;:&quot;addiction;health&quot;,&quot;lmsid&quot;:&quot;a0a6T00000R2KXGQA3&quot;,&quot;lpstaid&quot;:&quot;187345f0-9c26-329a-9f4f-acf19ad16b8c&quot;,&quot;pt&quot;:&quot;content&quot;,&quot;pd&quot;:&quot;modal&quot;,&quot;pct&quot;:&quot;story&quot;}\" data-wf-benji-wafer-config=\"{}\" data-wf-benji-config=\"{&quot;positions&quot;:{&quot;LREC3-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941&quot;:{&quot;id&quot;:&quot;LREC3-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941&quot;,&quot;path&quot;:&quot;\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center&quot;,&quot;region&quot;:&quot;viewer&quot;,&quot;size&quot;:[[300,250]],&quot;kvs&quot;:{&quot;loc&quot;:&quot;mid_center_3&quot;}}}}\" data-wf-trigger=\"onLoad\" data-wf-margin=\"100 0\" data-hide-ad-string=\"\">\n<div id=\"LREC3-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941\" class=\"wafer-benji-success\" data-google-query-id=\"COD3n7Pj-o0DFdUlBgAdxS08Vg\">\n<div id=\"google_ads_iframe_\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center_15__container__\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>However, edibles may also play a role in heart disease, according to a\u00a0May 2025 study.<\/p>\n<p>People who consumed edibles laced with tetrahydrocannabinol, or THC, showed signs of early\u00a0cardiovascular disease\u00a0similar to tobacco smokers.<\/p>\n<p>\u201cWe found that vascular function was reduced by 42% in marijuana smokers and by 56% in THC-edible users compared to nonusers,\u201d Dr. Leila Mohammadi, an assistant researcher in cardiology at the University of California, San Francisco, told CNN in a\u00a0prior interview.<\/p>\n<h3>The danger of high potency weed<\/h3>\n<p>None of the studies included in the new meta-analysis asked users about the potency of THC in the products they consume. Even if they had, that information would be quickly outdated, Silver said.<\/p>\n<p>\u201cThe cannabis market is a moving target. It is getting more potent every day,\u201d she said.<\/p>\n<div class=\"caas-da \">\n<div id=\"sda-LREC4-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941\" class=\"caas-sda-benji-ad caas-sda-gam-container-mid-center caas-sda-gam-container-mid-center-small wafer-destroyed\" data-wf-benji-page-context=\"{&quot;pageUrl&quot;:&quot;https:\/\/www.yahoo.com\/news\/marijuana-doubles-risk-dying-heart-223003966.html&quot;,&quot;spaceid&quot;:&quot;1197618800&quot;,&quot;site&quot;:&quot;news&quot;,&quot;hashtag&quot;:&quot;addiction;health&quot;,&quot;lmsid&quot;:&quot;a0a6T00000R2KXGQA3&quot;,&quot;lpstaid&quot;:&quot;187345f0-9c26-329a-9f4f-acf19ad16b8c&quot;,&quot;pt&quot;:&quot;content&quot;,&quot;pd&quot;:&quot;modal&quot;,&quot;pct&quot;:&quot;story&quot;}\" data-wf-benji-wafer-config=\"{}\" data-wf-benji-config=\"{&quot;positions&quot;:{&quot;LREC4-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941&quot;:{&quot;id&quot;:&quot;LREC4-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941&quot;,&quot;path&quot;:&quot;\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center&quot;,&quot;region&quot;:&quot;viewer&quot;,&quot;size&quot;:[[300,250]],&quot;kvs&quot;:{&quot;loc&quot;:&quot;mid_center_4&quot;}}}}\" data-wf-trigger=\"onLoad\" data-wf-margin=\"100 0\" data-hide-ad-string=\"\">\n<div id=\"LREC4-187345f0-9c26-329a-9f4f-acf19ad16b8c1750242393941\" class=\"wafer-benji-success\" data-google-query-id=\"COH3n7Pj-o0DFdUlBgAdxS08Vg\">\n<div id=\"google_ads_iframe_\/22888152279\/us\/ynews\/ros\/dt\/us_ynews_ros_dt_mid_center_16__container__\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u201cWhat\u2019s being sold to people today in California is 510 times stronger than what it was in the 1970s. Concentrates can be 99% pure THC. Vapes are over 80% THC.<\/p>\n<p>\u201cA variety of chemically extracted cannabinoids can be almost pure THC, and all of these just have very different effects on people than smoking a joint in the 1970s.\u201d<\/p>\n<p>Higher potency weed is contributing to a host of problems, including an increase in addiction \u2014 a\u00a0July 2022 study\u00a0found consuming high-potency weed was linked to a fourfold increased risk of dependence.<\/p>\n<p>In the United States, about 3 in 10 people who use marijuana have cannabis use disorder, the medical term for marijuana addiction,\u00a0according to the CDC.<\/p>\n<p>\u201cWe know that more potent cannabis makes people more likely to become addicted,\u201d Silver said. \u201cWe know that more potent cannabis makes people more likely to develop psychosis, seeing and hearing things that aren\u2019t there, or schizophrenia. Habitual users may also suffer from uncontrollable vomiting.\u201d<\/p>\n<p>The rise in potency is one reason that the current study may not have captured the full extent of the risk of marijuana for heart disease, Jouanjus said: \u201cWe are afraid that the association might be even stronger than that reported.\u201d<\/p>\n<p>While science continues to study the risk, experts say it\u2019s time to think twice about the potential harms of cannabis use \u2014 especially if heart disease is a concern.<\/p>\n<p>\u201cIf I was a 60-year-old person who had some heart disease risk, I would be very cautious about using cannabis,\u201d Silver said. \u201cI\u2019ve seen older people who are using cannabis for pain or for sleep, some of whom have significant cardiovascular risk, or who have had strokes or had heart attacks or had angina, and they have no awareness that this may be putting them at greater risk.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Get inspired by a weekly roundup on living well, made simple.\u00a0Sign up for CNN\u2019s Life, But Better newsletter<\/p>\n","protected":false},"author":2,"featured_media":335,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[8,7,6],"tags":[],"class_list":["post-334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health","category-news","category-world-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/posts\/334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=334"}],"version-history":[{"count":1,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/posts\/334\/revisions"}],"predecessor-version":[{"id":336,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/posts\/334\/revisions\/336"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=\/wp\/v2\/media\/335"}],"wp:attachment":[{"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cedritech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}