A beam of light to the brain: could it ward off Post-Surgery fog?

This trial tests whether shining a special near-infrared light on the forehead — a technique called transcranial photobiomodulation — can reduce the risk of delayed neurocognitive recovery (a form of brain fog) in older adults after surgery. The study includes people aged 65 and older who already have mild memory or thinking problems and are scheduled for non-cardiac, non-brain surgery. Participants receive either the real light treatment or a fake version before and after surgery to see if the light helps protect their cognitive function.