As first reported on Stop the Thyroid Madness years ago, patients who need cortisol supplementation after seeing their low saliva results (and comparing results to the lab values page), learned they needed to find their right “physiologic amount” of cortisol via supplementation i.e. the amount their bodies need. 

The cortisol supplementation used is either prescription hydrocortisone (HC) for extremely low amounts, or OTC Adrenal Cortex (ACE) for moderately low.

Patients then find their right amount of cortisol supplementation by doing what it’s called DATS, i.e. (DATS) for five days in a row. To read about DATS, study chapter 5, page 82, in the revised STTM book—it’s a book every hypothyroid patient should have on hand to be better informed in working with a doctor.  Chapter 6 goes into great details about HC use, but also applies to ACE use. 

But for female thyroid patients doing their DATS, there is a challenge.

Since precision is needed in collecting those three daily temps to find each daily average, the challenge is for menstruating women–this info does NOT apply to those in full menopause.

Below is a chart of an average woman’s temps in a 28 day cycle.  You’ll see there is fluctuation no matter what, which doing those individual temps three times in a day, then averaging, helps to rectify. But there is a clear and more drastic temperature change during those few days of ovulation i.e. it makes a move up. 








So it says that women would want to avoid doing their five days of DATS around ovulation.  And for “average” women, this chart above implies DATS can be done before ovulation, or after ovulation, but never during ovulation. But some specifically shoot to do their daily average temps after bleeding and before ovulation.

How to figure out when you are in ovulation

  1. Ovulation kits are great–just do an internet search and you’ll see them mentioned or where to buy
  2. For some women, a clue is when vaginal secretions increase
  3. For some women, there is pain around the uterus area that signals ovulation
  4. For some women, they might notice an increase in sexual desires around ovulation
  5. Tracking your wakeup temperature day after day during a near full cycle could give a clue


Some women report their temperatures go up drastically when they are bleeding, only to fall afterwards. So menstruation would be the wrong time to even begin doing DATS. If you are one of those women, waiting a day or two after stopping the bleed might be better, we think.