107. Hormone Testing: What Your Labs Can (and Can't) Tell You
In this lecture, Dr. Talia Marcheggiani, Naturopathic Doctor and Registered Psychotherapist, introduces hormone testing as one part of understanding hormonal health, while emphasizing that symptoms, history, and lived experience are more important than lab values alone. She explains that testing is meant to support care, not replace clinical context.Dr. Talia describes hormones as signalling molecules that communicate between organs and act through receptors, feedback loops, and endocrine axes such as the HPT, HPA, and HPO systems. The lecture focuses mainly on reproductive hormones, including estrogen, progesterone, testosterone, and cortisol, and how they relate to mood, sleep, stress, fertility, and metabolism.A major topic is the timing of testing in the menstrual cycle. Dr. Talia explains the follicular, ovulatory, luteal, and menstrual phases and why days 3 and about 7 days after ovulation are key times for bloodwork. She notes that progesterone is best assessed in the mid-luteal phase and that cycle regularity and ovulation matter more than relying on a fixed calendar day.The lecture reviews the main hormones individually. Estrogen is described as important for the uterine lining, skin, mood, libido, and long-term brain, bone, cardiovascular, and metabolic health. Progesterone is presented as calming, sleep-supportive, and protective against estrogen’s growth effects. Testosterone is discussed in relation to libido, motivation, muscle, and androgen excess patterns such as acne, hair loss, and insulin resistance. Cortisol is covered as a circadian stress hormone that affects immune and metabolic regulation.Dr. Talia also explains what testing can and cannot show. Blood testing can help assess ovulation, rule out other causes of symptoms, and guide treatment, including hormone replacement therapy safety. She contrasts serum testing with saliva and Dutch urine testing, stating a preference for serum because it is standardized and more clinically useful.We close by reviewing patterns seen in conditions such as PCOS/PMOS, perimenopause, menopause, PMS, and PMDD, and by stressing that hormone care should also consider gut function, liver clearance, methylation, nutrition, sleep, stress, and insulin.Join the 5-Part Decode Your Bloodwork Free course here: https://goodmood.thrivecart.com/decode-your-bloodwork/For more on hormone health, join Rhythm & Flow: The Integrative Hormone Mastery Course. Learn more here: https://goodmood.thrivecart.com/rhythm-and-flow/ Get full access to This Might Help at drtaliand.substack.com/subscribe