{"id":513,"date":"2019-02-18T15:41:31","date_gmt":"2019-02-18T14:41:31","guid":{"rendered":"https:\/\/bogenommedicinskcannabis.dk\/?page_id=513"},"modified":"2019-02-18T15:41:31","modified_gmt":"2019-02-18T14:41:31","slug":"et-andet-tvillingestudie-viser-ikke-nogen-sammenhaeng-mellem-cannabis-og-lavere-iq","status":"publish","type":"page","link":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/artikler\/sikkerhed\/et-andet-tvillingestudie-viser-ikke-nogen-sammenhaeng-mellem-cannabis-og-lavere-iq\/","title":{"rendered":"Et andet tvillingestudie viser ikke nogen sammenh\u00e6ng mellem cannabis og lavere IQ"},"content":{"rendered":"

Adskillige nyere studier modg\u00e5r p\u00e5standen om, at cannabis skader hjernen. Forskning publiceret i december 2015 sammenlignede IQ p\u00e5 en\u00e6ggede tvillinger.[1]<\/a> Til deres unders\u00f8gelse brugte de tvillinger, hvor den ene havde enten brugt eller afholdt sig fra cannabis i de sidste 10 \u00e5r.<\/p>\n

Efter at have justeret for milj\u00f8m\u00e6ssige forhold, fandt forskerteamet ingen m\u00e5lbar sammenh\u00e6ng mellem brug af cannabis og nedsat IQ. Den tvilling, der indtog cannabis, tabte omkring 4 IQ point over tid, men det gjorde deres tvilling ogs\u00e5. S\u00e5 det m\u00e5 anses for at v\u00e6re noget andet og ikke cannabis, der for\u00e5rsagede disse \u00e6ndringer.<\/p>\n

Studiets hovedforfatter Nicholas Jackson forklarer:
\n<\/strong>Vores fund f\u00e5r os til at mene, at dette \u201cnoget andet\u201d er relateret til noget i tvillingernes milj\u00f8, hvilket kunne v\u00e6re hjemmet, skolen og venner.\u2013 Jackson<\/p>\n

Resultaterne af tvillingestudiet bliver st\u00f8ttet af et andet publiceret i 2016.[2]<\/a> Britiske forskere under ledelse af Valarie Coran s\u00e5 p\u00e5 effekten af teenageres brug af cannabis p\u00e5 deres IQ. Teamet fandt, at teenagere, der indtog cannabis mindre end 50 gange, ikke adskilte sig fra ikke-brugere med hensyn til IQ eller uddannelsesm\u00e6ssig ydeevne.<\/p>\n

Voksnes brug af tobak, er derimod associeret med kognitiv nedgang.[3]<\/a> Selvom \u00a0disse studier ikke viser nogen nedgang i teenagernes IQ, betyder det ikke, at det er en god id\u00e9, at unge mennesker bruger cannabis rekreativt. Der sker en masse i en hjerne, der stadig udvikler sig.<\/p>\n

Yderligere forskning har vist, at tidligere start p\u00e5 rygning af cannabis oplevede st\u00f8rre problemer med impulsivitet end rygere, der startede senere.[4]<\/a> Studiet viser, at cannabis er en plante, der er v\u00e6rd at vente p\u00e5. Disse resultater ses ikke hos brugere, der starter sent.<\/p>\n

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[1]<\/a> Nicholas J. Jackson, Joshua D. Isen, Rubin Khoddam et al.: Impact of adolescent marijuana use on intelligence: Results from two longitudinal twin studies. PNAS February 2, 2016. 113 (5) E500-E508; published ahead of print January 19, 2016. https:\/\/doi.org\/10.1073\/pnas.1516648113<\/a> http:\/\/www.pnas.org\/content\/113\/5\/E500<\/a><\/p>\n

[2]<\/a> C Mokrysz<\/a>, R Landy<\/a>, SH Gage<\/a> et al.: Are IQ and educational outcomes in teenagers related to their cannabis use? A prospective cohort study. Journal of Psychopharmacology Vol 30, Issue 2, 2016. http:\/\/journals.sagepub.com\/doi\/abs\/10.1177\/0269881115622241<\/a><\/p>\n

SH Gage<\/strong>3MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
\nSee all articles<\/strong><\/a> by this authorSearch Google Scholar <\/strong><\/a>for this author<\/p>\n

[3]<\/a> Cigarettes, Not Cannabis, Linked To Lower IQ In Teens. https:\/\/herb.co\/marijuana\/news\/cigarettes-not-cannabis-linked-lower-iq-teens<\/a><\/p>\n

[4]<\/a> Staci A. Gruber<\/a>, Mary Kathryn Dahlgren<\/a>, Kelly A. Sagar<\/a> et al.: Worth the wait: effects of age of onset of marijuana use on white matter and impulsivity. Psychopharmacology (Berl)<\/a>. 2014; 231(8): 1455\u20131465.<\/p>\n

Published online 2013 Nov 5. doi:\u00a0 10.1007\/s00213-013-3326-z<\/a><\/p>\n

https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3967072\/<\/p>\n","protected":false},"excerpt":{"rendered":"

Adskillige nyere studier modg\u00e5r p\u00e5standen om, at cannabis skader hjernen. Forskning publiceret i december 2015 sammenlignede IQ p\u00e5 en\u00e6ggede tvillinger.[1] Til deres unders\u00f8gelse brugte de tvillinger, hvor den ene havde enten brugt eller afholdt sig fra cannabis i de sidste … L\u00e6s resten →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":292,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-513","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/pages\/513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/comments?post=513"}],"version-history":[{"count":1,"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/pages\/513\/revisions"}],"predecessor-version":[{"id":515,"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/pages\/513\/revisions\/515"}],"up":[{"embeddable":true,"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/pages\/292"}],"wp:attachment":[{"href":"https:\/\/bogenommedicinskcannabis.dk\/index.php\/wp-json\/wp\/v2\/media?parent=513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}