Second DIY morning test: basal body temperature

I often have my patients monitor their basal body temperature (BBT) as an indicator of how well their cells are responding to thyroid hormone.  Here’s how...

1. Get a reliable digital or mercury-free oral thermometer and place it by your bedside with paper and pen.  

2. Check your temperature immediately upon waking after at least 3 hours of sleep and prior to doing anything (including taking a sip of water).  

3.  Write it down.  

4.  Do this for 7-10 consecutive days and take the average.  

For ladies who are cycling, start on the 1st day of your cycle.