I don’t think Gamma wave stimulation is tantamount to witchcraft…here is a good medical review and how it interweaves with neurodegenerative diseases. That said, chasing gamma might prove to be a bit like chasing amyloid clearance…this is the cart before the horse discussion here. Focus on the inflammatory triggers instead.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC...%20emotion.

Note especially Table 1 on relationship to neurodegenerative diseases.

“Reduced rapid (alpha, beta, and gamma) and increased slow (delta and theta) rhythms are general resting-state EEG (rsEEG) metrics in patients with Alzheimer’s disease (AD; Jafari et al., 2020). Studies in humans and rodents provide corroborative evidence of detrimental links between AD neuropathology and gamma oscillations. EEG in neurodegeneration-positive patients provides a demonstration of inverted U-shape curve relationship between amyloid β (Aβ) burden and the power spectral density of gamma oscillations, reflecting the compensatory effect of the brain in the early stage and accelerated lesions after decompensation in the later stage of neurodegeneration (Gaubert et al., 2019).

{emphasis this last sentence}

Before the onset of Aβ plaque deposition and cognitive impairment, 5XFAD mice have exhibited abnormalities in sharp wave ripple (SWR)-related slow gamma oscillations (10–50 Hz)…”