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Every winter, TSH rises—but that doesn't mean thyroid failure. Dr Eric Balcavage explains how photoperiod, melatonin, and circannual rhythms alter TRH → TSH → T3 and why seasonal adaptation is often misdiagnosed as hypothyroidism.
In this episode, you'll learn:✅ How shorter days and colder temperatures reset the hypothalamic–pituitary–thyroid axis ✅ Why macro-TSH raises lab TSH without true hypothyroidism ✅ How both conventional and functional models misread winter physiology ✅ Five ways to align with your seasonal thyroid rhythm (light, rest, minerals, movement, patience)
By Dr Eric Balcavage4.6
147147 ratings
Every winter, TSH rises—but that doesn't mean thyroid failure. Dr Eric Balcavage explains how photoperiod, melatonin, and circannual rhythms alter TRH → TSH → T3 and why seasonal adaptation is often misdiagnosed as hypothyroidism.
In this episode, you'll learn:✅ How shorter days and colder temperatures reset the hypothalamic–pituitary–thyroid axis ✅ Why macro-TSH raises lab TSH without true hypothyroidism ✅ How both conventional and functional models misread winter physiology ✅ Five ways to align with your seasonal thyroid rhythm (light, rest, minerals, movement, patience)

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