A spine-zapping implant helped 3 people with a muscle-wasting disease walk betterLauran Neergaard, The Associated Press

New tech may provide hope for patients with spinal muscle atrophy, a genetic disease that gradually destroys motor neurons, nerve cells in the spinal cord that control muscles. Read More New tech may provide hope for patients with spinal muscle atrophy, a genetic disease that gradually destroys motor neurons, nerve cells in the spinal cord that control muscles.