 The calcium goes into the muscles. The magnesium actually helps the transmitters in the nerve. And when you take this Calmax formula, many times it will calm your back pain. Wow. I know a couple years ago I herniated a disc in my back, and I was trying everything, and I took out the Calmax formula, and I drank it, and I couldn't believe the difference. Within about a half hour, I was functional again. Now, it wasn't completely gone, but I drank it over a 10-day period, and it completely alleviated the problem.