1. A portable, wearable, proximal, radio-frequency based system for the treatment of Alzheimer's disease, dementia, and other memory-loss disorders of a brain of a patient, comprising: (a) a microstrip antenna unit configured to transmit a signal of radio-frequency (RF) energy in a directional transmission pattern in close proximity to a patient's head, (b) said microstrip antenna unit optimized for the radio-frequency selected for medical treatment, said RF energy for said medical treatment is focused at about 1 MHz to 2.5 GHz at an intensity insufficient to ionize molecules of the brain, and (c) said microstrip antenna unit connected to a radio-frequency generator through a radio-frequency transmission line.