An interesting note from a reader.

Enjoy!

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Hi Katie,

Love your book!

One thing I would strongly recommend though... I always took my morning temperatures under my armpit and was always discourages as the temps were so low.

A friend recommended under the tongue. I looked through your book and noticed that you recommend either way so I tried it. Well, my temps are consistently 1-1.5 degrees higher! I just think this info needs to be out there so women know it isn't apples to apples. I was convinced I had thyroid issues when in fact it was just the way I was measuring my temp.