1. A portable, wearable, proximal, radio-frequency-based system for the treatment of Alzheimer's disease, dementia, and other memory-loss disorders comprising: (a) an antenna unit appropriately sized and configured to be in close proximity to a patient's head, (b) said antenna unit optimized for the radio frequency selected for medical treatment, and (c) said antenna unit connected to a radio-frequency generator through a radio-frequency transmission line.