✅ Yes, the content about how winter’s cold influences hormonal balance appears to be true and authentic, as supported by several credible sources.

These include:

1. National Institutes of Health’s PMC (PubMed Central) article explains how ovarian hormones like estradiol and progesterone modulate physiological responses to cold, including thermoregulation through vasoconstriction and heat production, and how these hormonal fluctuations affect body temperature regulation during cold exposure. It notes that the hormonal influence on cold response is significant but complex and not fully understood yet. (Trust Score: 9/10)

https://pmc.ncbi.nlm.nih.gov/articles/PMC9154773/

2. A Frontiers in Genetics 2025 research article reports that cold exposure in female mice disrupts sex hormone balance (including estrogen and follicle-stimulating hormone), induces inflammatory responses in reproductive organs, and impairs reproductive capacity. This indicates cold environments can affect hormonal balance and reproductive health. (Trust Score: 8.5/10)

https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2025.1570053/full

3. A health-focused article on MIBlueDaily discusses elevated Thyroid Stimulating Hormone (TSH) levels during winter, linked to mild hypothyroidism caused by cold and reduced sunlight. This confirms that winter cold impacts thyroid hormone regulation, which plays a crucial role in metabolism and hormonal balance. (Trust Score: 7/10)

https://bcbsm.mibluedaily.com/stories/health-and-wellness/how-winter-hormonal-changes-affect-us

Other sources mention hormonal shifts due to cold in relation to cortisol and melatonin, affecting mood and metabolism in winter months, consistent with the broader theme of seasonal hormonal changes.

These findings collectively support the claim that winter cold influences various hormonal processes, including reproductive hormones, thyroid function, and stress-related hormones.