Aerobic activity may help keep the brain young, says a new research from the University of North Carolina at Chapel Hill School of Medicine. In the study, physically active elderly people showed healthier cerebral blood vessels. Researchers led by Elizabeth Bullitt, M.D., Van L. Weatherspoon Distinguished Professor of neurosurgery, used non-invasive magnetic resonance (MR) angiography to examine the number and shape of blood vessels in the brains of physically active elderly people, 7 men and 7 women, ages 60 to 80. The study subjects were equally divided into 2 groups. The high activity group reported participating in an aerobic activity for a minimum of 180 minutes per week for the past 10 consecutive years, and the low activity group told investigators they had no history of regular exercise and currently spent less than 90 minutes a week in any physical activity. Aerobically active subjects exhibited more small-diameter vessels with less tortuo...
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