40-Hz Light and Sound Therapy Aims to Slow Alzheimer’s Progress
Researchers are testing non-invasive 40 Hz flickering lights paired with precise audio to modulate memory-related brain activity in Alzheimer’s patients, with the goal of slowing cognitive decline rather than reversing it. A Phase 3 trial conducted by Cognito Therapeutics involves about 700 participants across 70 sites; earlier feasibility studies showed changes in brain signals and potential slowing of decline, though safety concerns are mostly headaches and the approach is intended to be a low-risk, accessible treatment alongside drugs.
