Impact of Biophoton Generator on Chronic-Stroke Patients' Recovery

The purpose of this clinical research is to verify if the patients with chronic stroke can regain the ability of living independently after daily using Testa BioHealing® Biophoton Generators to increase the energy of the brain and other parts of the body. The main study questions are: * Can patients with chronic stroke regain life independence by normalizing Activities of Daily Living (ADL). * Can brain-injury and recovery status of the patients with chronic stroke be detected by using an EEG machine. Participants will sleep-rest on a hotel bed energized by Tesla BioHealing Biophoton Generators, and clinical study staff will observe the participant's activities of daily living, as compared to those who will sleep in the hotel room equipped with placebo devices.