Scientists to test brain zapping during sleep on healthy volunteers

This study explores whether a safe, non-invasive electrical stimulation technique called temporal interference stimulation can temporarily alter brain activity during sleep. Researchers will focus on sleep spindles, which are brain rhythms linked to memory and learning. Up to 24 healthy adults will each spend 3 nights in a sleep lab to compare real stimulation versus a sham (fake) version. The goal is to understand how different stimulation locations and frequencies affect the sleeping brain.