The earth's magnetic field leads to a compass needle to orient inside of a North-South way which is utilized by birds and fish for navigation. There are a small percentage of Prolotherapy people who do not respond to a course of treatment. Usually, you'll find four factors Prolotherapy wouldn't perform: https://stem-cell-therapy-chicago89999.onesmablog.com/stem-cell-therapy-chicago-no-further-a-mystery-75534739