Source: LiveScience
Posted: June 7, 2007 10:42 a.m. PT
Summary:
The brains of adult mammals are slowly, constantly churning out new brain cells. Previously scientists assumed the fresh neurons acted simply as replacements for old and dying cells. But recent research suggests that these new adult neurons may help old cells adapt to new experiences and could someday be used to rejuvenate aging brains. The study, detailed in the May 24 issue of the journal Neuron, shows new brain cells act just as youthful in adult mammals as those generated in young ones.
