Answer: You can have 50 geo-fences for each GPS vehicle tracking device and 50 global geo-fences per account. Each geo-fence is square and centered around an address that you specify.
1 Almost everyone experiences a muscle cramp at some time in their life. 2  There are a variety of types and causes of muscle cramps. 3  Numerous medicines can cause muscle cramps. 4  Most muscle cramps can be stopped if the muscle can be stretched.
The authors noted that exercise, stretching or âmedications such as magnesium, calcium channel blockers, carisoprodol, or vitamin B12â can be helpful. Mustard for leg cramps may provide some relief, and if you try it and it doesnât work, no harm is done. If it does, it may be for one of the reasons mentioned or it may be a placebo effect.