Posts Tagged ‘maconha’

Incrível como uma unica dose de substancia da maconha na juventude deixa o cérebro “aleijado” para o resto da vida!

terça-feira, janeiro 15th, 2019

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Descobriram que as imagens de MRI do cérebro de jovens nos 14 anos que experimentam maconha uma unica ou duas vezes são diferentes dos normais e porque nesta idade o cérebro ainda esta’ em formação, a maconha aumenta a quantidade da massa cinza, a qual vai impedir ou dificultar para sempre as conexões entre neurônios. E com isso a pesquisa descobriu que jovens que usam maconha frequentemente apresentam diferente capacidades cerebrais em relação aos jovens normais, ficando mais lentos nos testes de memoria, menos hábeis a aprender novas informações, e dificuldades em processar informações, ou seja, diminui  a inteligencia.

Noticia completa em:

https://www.nbcnews.com/storyline/legal-pot/even-little-marijuana-may-change-teen-brain-study-finds-n958536

Image: Various figures show grey matter volume differences after cannabis use in adolescents.

Even a little marijuana may change teen brain, study finds

Researchers say even one or two joints cause changes in areas of the brain involved in emotion-related processing, learning and forming memories.

Low levels of marijuana use — as few as one or two times — may change the teen brain, according to a new study.

The study, which looked at the brains of 46 14-year-old girls and boys from Ireland, England, France and Germany, found that teenagers who reported using recreational marijuana just once or twice displayed increased volume on MRI images in numerous brain regions involved in emotion-related processing, learning and forming memories.^

““At the age at which we studied these kids (age 14), cortical regions are going through a process of thinning,” he said, suggesting that this is a “sculpting” process that makes the brain and its connections more efficient. “So, one possibility is that the cannabis use has disrupted this pruning process, resulting in larger volumes (i.e., a disruption of typical maturation) in the cannabis users. Another possibility is that the cannabis use has led to a growth in neurons and in the connections between them.”

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