Ka taƙaita labarin:  Masana sun yi gargaɗi cewa tabar wiwi ta fi ƙarfin da take da shi shekaru talatin da suka shige. Masana kimiyya sun gano cannabis da ake shan sigari a yau ya ninka sau uku tun daga shekarun 1980. Marijuana yanzu yana ƙunshe da yawan tetrahydrocannabinol (THC), mahaɗin psychoactive wanda ke ba da 'high'. Amma maida hankali kan cannabidiol (CBD), wani abu da ba a san shi ba wanda ake bincike don masu ba da shawara na likita, amma ba ya haifar da 'babban' ba, ya sauka. Samfurori kuma sun ƙunshi gurɓatattun abubuwa ciki har da ƙwayoyin cuta, fungi, butane da ƙarfe masu nauyi, masana kimiyya sun gano. Gungura ƙasa don bidiyo. Super karfi: Marijuana da ake sayarwa a kasuwa a yau ya ninka sau uku tun daga shekarun 1980, masana kimiyya sun yi gargadin. An gudanar da binciken ne ta hanyar Dr Andy LaFrate, shugaban da kuma darektan bincike na Charas Scientific, wani dakin gwaje-gwaje a Colorado, Amurka, wanda ke gudanar da gwaje-gwaje na iko a kan samfurin marijuana a kasuwa a yau. Da yake gabatar da bincikensa na farko a 249th National Meeting & Exposition of the American Chemical Society (ACS), ya gano cewa wiwi ta ninka sau uku a cikin shekaru 30 da suka wuce. Ya ce: 'Mun ga ƙaruwar ƙarfin marijuana idan aka kwatanta da inda yake shekaru 20 ko 30 da suka wuce. 'Zan ce matsakaicin ƙarfin marijuana ya ƙaru da sau uku.' Matsakaicin ƙarfin samfuran da ya bincika ya kasance kashi 20 cikin ɗari na THC, amma ya ga ƙimar kusan kashi 30 cikin ɗari, wanda ya bayyana a matsayin 'babban'. Ya bayyana cewa shekaru 30 da suka gabata, matakan THC a cikin marijuana sun kasance ƙasa da kashi 10 cikin ɗari. Abubuwan da ke cikin THC na cannabis sun ninka sau uku a cikin wasu nau'ikan saboda masu samarwa suna haɗuwa da su tsawon shekaru yayin da masu amfani ke buƙatar magunguna masu ƙarfi, in ji shi. Ya kara da cewa sakamakon da ba zato ba tsammani na kiwo shi ne cewa yawancin samfuran da dakin gwaje-gwajensa ya gwada sun ƙunshi kadan ko babu CBD. Masu bincike a halin yanzu suna binciken CBD a matsayin magani don schizophrenia, cutar Huntington da cutar Alzheimer, da damuwa da damuwa. Amma ba kamar THC ba, CBD ba ya samun 'high' iri ɗaya, wanda shine dalilin da ya sa zai iya...
Cannabis ya ninka sau uku a cikin shekaru talatin da suka gabata, masana kimiyya sun yi gargadin. Sun bincika matakan tetrahydrocannabinol (THC) a cikin marijuana. An sami THC a kashi 30%, idan aka kwatanta da kashi 10% shekaru talatin da suka gabata. Masana kimiyya sun kuma gano kwayoyin cuta, fungi, butane da kuma karafa masu nauyi a cikin tukunya.