Shan tabar a matsayin matashi ba ya shafar mummunan tunani da tunani, kuma amfani da haske a zahiri yana da alaƙa da sauƙin haɓaka cikin ƙwarewar yanke shawara, a cewar sabon bincike.
"Skillswarewar yanke shawara game da masu amfani da wiwi mai haske ta inganta daga shekaru 14 zuwa 19, yayin da rukunin sarrafa abubuwa ya kasance kusan ɗaya," in ji babban binciken Turai mai tsawo na amfani da wiwi.
Hasashe na farko ya kwatanta ƙwarewar ƙwaƙwalwar ƙwaƙwalwa na masu amfani da wiwi a cikin samartaka da waɗanda ba masu shan sigari ba. Na biyu ya mai da hankali kan bambance-bambancen neurocognitive tsakanin matasa waɗanda suka fara shan ciyawa kafin ko bayan shekaru 16. "Neurocognitive" yana nufin tsarin jiki a cikin kwakwalwa hade da ayyuka daban-daban na tunani.
Binciken ya ce "A takaice, ba mu sami wata hujja da za ta tabbatar da zaton cewa shan wiwi na haifar da raguwar karfin kwakwalwa ba."
Binciken ya ba da shawarar cewa ana buƙatar ci gaba da bincike kafin abubuwan da za a iya yi a cikin aikin asibiti ko siyasa za a iya yi. Masu binciken sun lura da sauran karatuttukan da suka zo ga yanke hukunci daban-daban, kamar su cannabis ya haifar da halayyar yanke shawara mai saurin motsawa, babu iko akan sauran amfani da miyagun ƙwayoyi, kuma samfurin samfurin ƙarami ne.
"Saboda haka, ana bukatar ƙarin karatu na dogon lokaci tare da manyan samfurin masu amfani da yawa da masu amfani ba tare da giya da shan sigari ba, da kuma tsawon lokaci, don samar da cikakken bayani game da illar amfani da wiwi."
'Babu Hujjar Illolin' akan Ilimin Nakwarewar Yara
Sakamakon ya nuna cewa matasa da suka sha taba, musamman waɗanda suka fara amfani da wiwi a ƙarshen, sun ci ƙima sama da matasa masu madaidaiciya a bin sawu Aiki na caca da caca-test.
"Baya ga wannan, bayan sarrafawa don masu rikitarwa, ba mu sami wata hujja ba game da tasirin wiwi a kan sauran masu canzawar jijiyoyin jiki kamar hankali, ƙwaƙwalwar aiki, ƙwaƙwalwar ajiyar lokaci da ɗaukar haɗari," in ji binciken.
Masu binciken sun gano cewa mutanen da suka yi amfani da wiwi da yawa kuma sun yi amfani da kwayoyi da giya kuma sun fara shan wiwi da wuri fiye da masu amfani da haske. Farkon farawa kuma yana haɗuwa da ƙara amfani a cikin rayuwa.
Don binciken, an zaɓi matasa 804 daga Hoto hoto, Nazarin manyan harsuna da aka gudanar a kasashen Jamus, Ingila, Ireland da Faransa. Yana bincika yadda ilimin ɗabi'a, halayyar mutum da muhalli a lokacin samartaka na iya tasiri ga ci gaban kwakwalwa da lafiyar ƙwaƙwalwa.
Mahalarta suna da shekaru na shekaru 14 lokacin da aka fara tattara bayanan farko da kuma shekaru 19 don tarin-biye.
Matasa sun kasu kashi uku: matasa waɗanda ba su taɓa shan ƙwayoyi ba bisa doka ba; mai amfani da wiwi mara nauyi wanda ya sha taba kasa da sau 20 a cikin watan da ya gabata da kuma masu shan sigari masu yawa waɗanda ke shan sigari fiye da sau 20 a wata.
Don gwada ra'ayi na biyu, masu bincike sun rarraba mahalarta dangane da ko sun fara amfani da wiwi kafin shekaru 16 ko bayan haka.
An auna ikon mahalarta don yin tunani da hankali ta hanyar amfani da gwaje-gwaje da yawa, gami da Batirin atomatik na Cambridge Neuropsychological Test, wanda ke tantance cikakken aikin fahimi, da Memory Recogn Memory, wanda ke auna ƙwaƙwalwar ajiyar ɗan gajeren lokaci.
Masu binciken sun kuma auna IQ, amfani da abu, da kuma yanayin zamantakewar al'umma, amma basu sami wani sakamako ba.
Sources: Canex (EN), AsibitinHealthCare (EN,, JamaNetwork (EN(Mugglehead)EN), Kimiyyar Kimiyya (EN)
