Which of the following methods is used to help manage chronic pain by stimulating nerves?

The TENS unit is a device that stands for Transcutaneous Electrical Nerve Stimulation. It works by using low-voltage electrical currents to stimulate the nerves in the affected area, which can help reduce the perception of pain. This stimulation can interfere with the pain signals traveling to the brain and also promote the release of endorphins, the body’s natural painkillers.

In contrast, while physical therapy and acupuncture can also be beneficial in managing chronic pain, they do not primarily rely on direct nerve stimulation like a TENS unit does. Physical therapy focuses on exercises and stretches to improve mobility and strength, while acupuncture involves inserting needles into specific points on the body to stimulate the nervous system. Analgesics are medications that alleviate pain but do not involve stimulating nerves; they work chemically to reduce pain perception instead. Thus, the TENS unit is a unique method that directly targets nerve stimulation for pain management.