Abnormalities of the menstrual cycle have long been associated with DTSF. In fact, thyroid function is recommended as one of the first things to be checked in a patient with irregular menses. Unfortunately, DTSF is often incorrectly ruled out merely on the basis of thyroid hormone blood tests being within the “normal range,” even in the face of classic signs, symptoms, and presentation of DTSF. Low body temperature patterns often result in frequent and heavy periods, but may result in light or skipped periods, as well as other abnormalities. Heavy menstrual cramping is also commonly associated with low body temperature patterns. Again, irregular periods can be seen to follow a pattern of onset, persistence, and resolution characteristic of Wilson’s Temperature Syndrome symptoms and can respond very well to the WT3 protocol.