Stephen Hawking has almost the entire body paralyzed, with the exception of the facial muscle of the cheek, next to which a transmitter is attached, which allows Stephen to communicate with others using a speech synthesizer.
I recommend watching the film, which is called “The Universe of Stephen Hawking” in the Russian box office. An interesting movie, which also has an answer to the question.
Stephen Hawking has almost the entire body paralyzed, with the exception of the facial muscle of the cheek, next to which a transmitter is attached, which allows Stephen to communicate with others using a speech synthesizer.
I recommend watching the film, which is called “The Universe of Stephen Hawking” in the Russian box office. An interesting movie, which also has an answer to the question.