Studies have found that one or two doses of marijuana alter brain structure in teenagers under 14.

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Studies have found that one or two doses of marijuana alter brain structure in teenagers under 14.

2019-01-22 17:30:54 190 ℃
< p > Recently, according to foreign media reports, a new study shows that one or two cannabis use by teenagers under the age of < strong > 14 is enough to change the brain structure. Scientists scanned the brains of 46 adolescents from Britain, France and Germany who said they had smoked marijuana one or two times. The results were compared with those of teenagers who had not smoked marijuana. < p > < p > that is, < strong > smoking cannabis once or twice seems to change the gray matter volume in the brains of these adolescents.

Specifically, scientists found that grey matter increased in areas stimulated by cannabis, with amygdala and hippocampus being the most affected. Previous studies on brain and cannabis have often yielded mixed results, which provides new evidence for the effects of cannabis. Professor David Nate of Imperial College of Technology, UK, said: "Although the study itself does not prove that a small amount of marijuana has a negative impact on the brain of adolescents, it is an important area of research and certainly deserves further study." Scientists speculate that cannabis use may have interfered with brain development.