The invention includes a method of treating and preventing a neurological disorder, such as Alzheimer's Disease, in a subject in need thereof by positioning an electromagnetic field emitting source proximal to the subject and exposing the subject to an electromagnetic field having a predetermined frequency for a predetermined absorption period. Preferably, each individual treatment (comprising exposure to the predetermined frequency for the predetermined absorption period) is continued at a predetermined schedule (preferably daily) for a predetermined treatment period.The predetermined frequency, according to a preferred embodiment, is about 918 MHz with a specific absorption rate (SAR) of about 0.25 W/kg+/−2 dB. The predetermined absorption period of this preferred embodiment is about one hour. The treatment period is long-term, being greater than about 6 months and preferably between about 7 and 9 months.