A few months ago, I had to have muscle and nerve conduction tests due to numbness and tingling in my arms. Fortunately, they didn’t find anything major wrong with me. I was sent to a physical therapist who helped me stretch and relax my tight neck and back muscles, and the unusual sensations have mostly gone away. (Thanks Elsa!)
The electromyogram test was fascinating. The neurologist sticks you with tiny needles that are connected to a computer wire and a speaker. When you move, the electrical pulses that are your nerves “firing” produce staticky pops over the speakers that sound quite similar to a needle being placed on a record. The computer monitor displays wavy lines, a bit like the pulsing lights that appear on some stereos, or on itunes, as the music swells. The doctor studies the sounds and curves to see if they seem normal. I do not recommend the situation that led to me being sent for these tests, but it was fascinating to find that I’ve got the music in me, so to speak. I vaguely knew that muscle and nerve activity was electrical, but I didn’t realize quite how much the elaborate communication systems we’ve devised for ourselves resemble the inner workings of our own bodies.








