Electrical jolts to brain restored memory of elderly to that of 20-year-old

Gentle jolts of alternating current to the brain restored the waning working memories of older adults (aged 60 to 76 years old) to performance levels seen in younger adults (aged 20 to 29)—at least for a little under an hour. Moreover, the finding generates some early buzz that such non-invasive brain stimulation may one day, in the distant future, be used as a therapy for such memory issues. In a subsequent experiment, the researchers tried to reverse the finding: they used brain stimulation designed to desynchronize waves in young participants, which caused the subjects to do worse on the memory test.

Source: arstechnica.com