How do chloride ion concentrations change as women approach ovulation? Does this effect help in predicting ovulation?
Researchers in the late 50s and early 60s noted that numerous salts (chloride, sodium, potassium) in a woman’s sweat fluctuated in relation to the menstrual cycle. Chloride levels are low at the start of the menstrual cycle and peak three times during the cycle. The graph below shows what the different hormonal surges are in a woman’s system on the days before she ovulates. This graph depicts a 28-day cycle, however, in any cycle length, the pattern is the same. You will notice that the chloride ion surge happens well in advance of the estrogen and the LH surge. That is how only OV-Watch can give you the entire fertility window, including those 4 crucial days before ovulation, in a wrist-mounted, easy to use device.
