My hair analysis showed my calcium is much too high in relation to my magnesium. Jelly has posted recently on how this may be common in our illness. Here is an excerpt from my hair analysis booklet that may interest those of you, like me, with an irritable bladder: "Calcium and Magnesium are important elements whose roles include involvement in muscular response. When not in a normal balance, an excess of tissue calcium relative to magensium will frequently lead to constant muscular tension and contraction. If the muscles surrounding the urinary bladder are in a state of tension due to this error in mineral metabolism, the volume capacity within the bladder will be reduced. This condition may contribute to an increased frequency of urination due to the restricted size of the bladder".