"Have you ever told even one lie?" asks the examiner. "No," says the man - and the needles on the polygraph machine barely shift from their rhythmic movements.
The pain of the coughing fit had not quite driven out of Winston's mind the impression made by his dream, and the rhythmic movements of the exercise restored it somewhat.
Despite the powerful and rhythmic movements, we can't see any beautiful body language in the exercises as those in dancing.
The scientists theorize that the rhythmic movement, which produces a sensation similar to that of a vibrating cell phone but on a larger scale, exercises cells so they work better.