Can a gentle electric zap to the brain restore memory in MS?

This trial tests whether a mild electric current applied to a brain area linked to memory can improve verbal recall in people with relapsing-remitting multiple sclerosis. Participants will receive either active or sham stimulation during cognitive tasks, and their performance will be measured before, shortly after, and two months later. The study also looks at how individual differences, such as baseline cognition and concussion history, might influence treatment response.