New research could provide new hope for extending our brain function as we age. In a randomized clinical study involving adults age 56 to 71, researchers found that after cognitive training, participants' brains were more energy efficient, meaning their brain did not have to work as hard to perform a task.

New research could provide new hope for extending our brain function as we age. In a randomized clinical study involving adults age 56 to 71, researchers found that after cognitive training, participants' brains were more energy efficient, meaning their brain did not have to work as hard to perform a task.