The Effect of 40 Hz Transcranial Stimulation on the Incidence of Delirium After Total Hip Replacement or Total Knee Replacement Arthroplasty in Elderly Patients.

Exogenous 40HZ stimulation is a physical intervention that can drive oscillations in the gamma range, and the oscillations and pulses caused at the corresponding frequency can lead to a significant reduction in β-amyloid, reverse tau hyperphosphorylation, and thereby improve the cognitive function of patients.