Wearable Devices Move Toward Disease Treatment

For example, a device called Quell, which attaches to the upper calf, could help reduce chronic pain for some people, according to the company. The device stimulates nerves in the leg with an electrical current, which, in turn, triggers a response from the central nervous system that can block pain signals anywhere in the body, the company says. The company says Quell automatically adjusts the strength of the current during a therapy session, and it has a sleep mode that automatically starts a s