Teenage Drinking Shrinks Gray Matter

Heavy drinking of alcohol during adolescence appears to lead to the exaggerated loss of gray matter and an increase in white matter compared to non-drinking peers. The study subjects tended to drink in binges on weekends or at parties. At baseline average GPA was 3.5 (of 4), but the drinkers average dropped during the study to 3.2,…

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Exercise Helps Your Brain!

Good news (again) for those who exercise! Individuals with or without Alzheimer's disease who are physically active tend to have 5% greater brain gray matter volume than those who are less physically active. A recent study of 876 individuals who were approximately 78 years old compared those who expended 3434 calories per week with those…

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Walking Frequently Increases Gray Matter

Almost 300 healthy adults aged 65 or older reported how much they walked per week. Nine years later they had MRI brain scans. Those who walked at least 72 blocks (estimated 6-9 miles) per week had more gray matter volume compared to those who walked less. Greater gray matter volume reduced the risk for cognitive…

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