Back in May 2024, the renowned journal Medscape announced that non-invasive electrical stimulation could improve hand and arm function in paralyzed patients. According to a study by Chet Moritz from the Department of Rehabilitation Medicine at the University of Washington in Seattle and colleagues on 65 people with paralysis of the upper and lower body (tetraplegia), the sensory abilities of the arm and hand functions and the quality of life improved in the majority of the test subjects.