Teen brain development and drinking
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The review found that: A large proportion of adolescents drink alcohol. Studies show how alcohol affects human adolescent brain development. Differences in structure and function are observed in the brains of young people who drink alcohol. More high-quality studies are needed in this developing field of research. The researchers reviewed 21 brain-scan studies of young people aged 19 and under, examining how drinking alcohol influences the developing human brain. The studies were using the brain-scan techniques of magnetic resonance imaging MRI and functional magnetic resonance imaging fMRI.
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Teen Drinking May Cause Irreversible Brain Damage
Impact of alcohol on adolescents’ brains: systematic review | Drinkaware
University of Illinois at Chicago Summary: Lasting changes in the brain caused by drinking that starts in adolescence are the result of epigenetic changes that alter the expression of a protein crucial for the formation and maintenance of neural connections in the amygdala -- the part of the brain involved in emotion, fear and anxiety. Share: FULL STORY Binge drinking in adolescence has been shown to have lasting effects on the wiring of the brain and is associated with increased risk for psychological problems and alcohol use disorder later in life. Their results, which are based on the analysis of postmortem human brain tissue, are published in the journal Translational Psychiatry. Epigenetics refers to chemical changes to DNA, RNA or specific proteins associated with chromosomes that change the activity of genes without changing the genes themselves. Epigenetic modifications are involved in the normal development of the brain, but they can be influenced by environmental or even social factors, such as alcohol and stress. These kinds of epigenetic alterations have been linked to changes in behavior and disease.
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What You Need to Know About Alcohol and the Developing Teenage Brain
Teen brains are more vulnerable to the effects of marijuana than alcohol, a new study finds. Adolescents who begin using marijuana regularly may suffer lasting repercussions in their thinking ability, according to scientists at the University of Montreal. The study , published Wednesday in the American Journal of Psychiatry, followed over 3, adolescents from 31 Montreal-area schools over four years. The teens, who started participating in the study when they were 13, agreed to provide annual reports of how frequently they used marijuana and alcohol.
The red specks highlight where the integrity of the brain's white matter is significantly less in the teens who binge drink, compared to those who do not. A recent study led by neuroscientist Susan Tapert of the University of California, San Diego compared the brain scans of teens who drink heavily with the scans of teens who don't. Tapert's team found damaged nerve tissue in the brains of the teens who drank. The researchers believe this damage negatively affects attention span in boys, and girls' ability to comprehend and interpret visual information. In other words, key areas of the brain are still under construction during the adolescent years, and are more sensitive to the toxic effects of drugs and alcohol.