The auditory stimulation of light and sound healing is more effective than any other form of healing. The auditory stimulation caused microglial activity and affected blood vessels and circulation. The team behind the study thinks this might help cut down on harmful proteins in the brain. This led the researchers to try a new approach, combining light and sound stimulation therapy, and to their delight, they found that this treatment had an even better effect than the original. The researchers observed that the prefrontal cortex, crucial for higher-order cognitive functioning, was among the brain regions where beta-amyloid plaques were cleared away following the combination treatment.