your ability to multitask changes as you age. in a new study,
researchers from japan and the u-s monitored blood flow in the
brains of young and older adults as they performed physical,
mental and combination tasks. they found older adults needed
more blood in their brain when completing the combination task.
researchers say this is a sign the older brain needs to work
harder to multi-task. they are planning more studies to see if
training exercises that combine mental and physical tasks can
help keep the brain young.