A man with ALS who had lost his ability to speak has had his speech restored through a brain implant. The implant, part of the BrainGate clinical trial, has allowed him to produce natural-sounding sentences and even sing, with some reports indicating he has been able to speak for 3,800 hours. The technology uses a brain-computer interface to translate the man's attempts to speak into audible speech, marking a significant breakthrough in the treatment of speech loss due to ALS.