Physically fit kids have beefier brain white matter than their less-fit peers
Wednesday, August 20, 2014 - 09:02
in Biology & Nature
A new study of 9- and 10-year-olds finds that those who are more aerobically fit have more fibrous and compact white-matter tracts in the brain than their peers who are less fit. 'White matter' describes the bundles of axons that carry nerve signals from one brain region to another. More compact white matter is associated with faster and more efficient nerve activity.