Blog
Plain-language, clinically grounded answers on perimenopause, hormones, gut, sleep, HRT, and functional medicine.
- Lab testing
How Does Hormone Testing Work for Women in Their 40s?
Hormone testing in your 40s typically measures estradiol, progesterone, FSH, LH, and sometimes testosterone, DHEA-S, and thyroid markers through blood work. The goal is to capture where you are in…
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What Do I Need to Know Before Getting Perimenopause Bloodwork?
Time your labs to day 19-21 of your cycle if you're still cycling, fast 8-12 hours before the draw, avoid intense exercise the day before, and request the functional ranges alongside the standard r…
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What Are the Best Labs to Test During Perimenopause?
The most revealing labs during perimenopause are: estradiol, progesterone, TSH, free T3, ferritin, fasting insulin, vitamin D, and DHEA-S. Standard reference ranges flag disease, not dysfunction —…
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What's the Difference Between "Normal" Lab Ranges and Functional/Optimal Ranges?
Normal lab ranges are designed to identify overt disease — they flag values outside the statistical middle 95% of the population. Functional ranges identify declining physiological function before…
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