From AP News:
Zapping the brains of people over 60 with a mild electrical current improved a form of memory enough that they performed like people in their 20s, a new study found.
Someday, people might visit clinics to boost that ability, which declines both in normal aging and in dementias like Alzheimer's disease, said researcher Robert Reinhart of Boston University.
The treatment is aimed at "working memory," the ability to hold information in mind for a matter of seconds as you perform a task, such as doing math in your head. Sometimes called the workbench or scratchpad of the mind, it's crucial for things like taking medications, paying bills, buying groceries or planning, Reinhart said.
"It's where your consciousness lives ... where you're working on information," he said...