Physical activity reorganizes the brain so that its response to stress is reduced and anxiety is less likely to interfere with normal brain function, according to aPrinceton University research team.
The researchers report in the Journal of Neurosciencethat when mice allowed to exercise regularly experienced a stressor — exposure to cold water — their brains exhibited a spike in the activity of neurons that shut off excitement in the ventral hippocampus, a brain region shown to regulate anxiety.
The impact of physical activity on the ventral hippocampus specifically has not been deeply explored, said senior author Elizabeth Gould, Princeton’s Dorman T. Warren Professor of Psychology. By doing so, members of Gould’s laboratory pinpointed brain cells and regions important to anxiety regulation that may help scientists better understand and treat human anxiety disorders, she said./.../
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