On review, after applying external electromagnetic fields ranging 5 to 8 Hz, large improvements were detected in Alzheimer’s patients. These included improved visual memory, drawing performance, spatial orientation, mood, short-term memory and social interactions.

R. Sandyk, “Alzheimer’s Disease: Improvement of Visual Memory and Visuoconstructive Performance Treatment with Picotesla Range Magnetic Fields,” International Journal of Neurosci, 76(3-4), June 1994, p. 185-225.