Video·3 min read·May 2026

Harnessing the Power of Cold: How Contrast Therapy Enhances Resilience and Recovery

Cold Therapy|Mechanisms • 3 min read • Based on research by Claudine Seeliger, Tanja Krauss, Julius Honecker, Laura Aline Mengel, Lise Buekens, Alberto Mesas‑Fernández, Thomas Skurk, Melina Claussnitzer, Hans Hauner (2022)

Imagine stepping into an icy plunge after a warm sauna. The initial shock is invigorating, a jolt to the senses that can awaken both body and mind. This practice, known as contrast therapy, is not just a refreshing ritual; it holds profound implications for our health and longevity.

Recent research sheds light on the science behind cold exposure, revealing how it can influence our body's energy metabolism. Specifically, a study published in 2022 explored the role of a microRNA called miR-375 in relation to cold exposure and thermogenesis. Understanding these mechanisms can empower us to optimize our recovery protocols and enhance our resilience.

The Science of Cold Exposure

The study involved 169 healthy participants, examining the effects of cold exposure on their serum microRNA levels. Researchers analyzed 158 different microRNAs to uncover how they respond to cold conditions. One key finding was the significant down-regulation of miR-375 after cold exposure, indicating its sensitivity to temperature changes.

Why does this matter? miR-375 is associated with visceral adipose tissue, the type of fat linked to metabolic health. When cold exposure occurs, this microRNA decreases, suggesting a possible pathway for enhancing thermogenesis—the process by which our bodies generate heat and burn energy. This is particularly relevant for those seeking to optimize their metabolic function and overall wellness.

Connecting Cold Exposure and Energy Expenditure

Cold exposure activates non-shivering thermogenesis, a mechanism that increases energy expenditure without the need for muscle activity. The study found that as miR-375 levels decreased, there was a corresponding increase in thermogenesis-related genes within visceral adipose tissue. These genes, including FABP4 and FGF21, play critical roles in how our bodies utilize energy.

In simpler terms, engaging in regular cold exposure practices can stimulate your body’s ability to burn fat more efficiently. This insight offers a tangible benefit for anyone looking to enhance their physical performance or support their recovery processes.

Practical Implications for Wellness Rituals

Understanding the role of miR-375 not only deepens our comprehension of cold exposure but also suggests practical applications for wellness. By incorporating contrast therapy into your routine—alternating between heat and cold—you can potentially enhance your body's thermogenic capabilities.

Whether you are an athlete seeking to improve recovery or simply someone looking to boost overall health, the insights from this research can inform your approach. Embracing cold exposure as part of your wellness sanctuary may help you achieve greater equilibrium in your body, enhancing resilience and vitality.

Key Takeaways

Cold exposure can reduce levels of miR-375, a microRNA linked to visceral fat, potentially enhancing your body's fat-burning capabilities.
Incorporating contrast therapy into your wellness routine can stimulate non-shivering thermogenesis, increasing energy expenditure and supporting recovery.
Understanding the science behind cold exposure empowers you to make informed choices in your wellness journey, promoting resilience and longevity.

Based on: miR‑375 is cold exposure sensitive and drives thermogenesis in visceral adipose tissue derived stem cells
Claudine Seeliger, Tanja Krauss, Julius Honecker, Laura Aline Mengel, Lise Buekens, Alberto Mesas‑Fernández, Thomas Skurk, Melina Claussnitzer, Hans Hauner (2022). Scientific Reports

Contrast Collective • Science-backed wellness

Wim's Wise Words

A second take, from someone who's lived it.

🧊 Wim's Wise Words

miR375 is cold exposure sensitive and drives thermogenesis in visceral

The Molecular Brake on Visceral Fat

Most of what we discuss about cold exposure operates at the level of experience — the shock of the plunge, the subsequent warmth, the mental clarity that follows. But underneath all of that, your cells are doing something remarkable. This paper from researchers at the Technical University of Munich gives us a rare window into that molecular layer, and what they found is genuinely surprising.

The core claim: there is a specific microRNA called miR-375 that acts as a kind of brake on thermogenesis in visceral adipose tissue — the deep abdominal fat that's most strongly linked to metabolic disease. When you expose the body to cold, miR-375 levels drop significantly. And when miR-375 drops, the genes that drive heat production turn on. Cold exposure doesn't just activate brown fat in the abstract. It appears to release a molecular inhibitor that was holding thermogenesis back.

Why Visceral Fat Specifically

This is the detail that stopped me. Most cold exposure research focuses on brown adipose tissue (BAT) around the neck and supraclavicular region — the classic cold-activated depot. But this paper found that miR-375 is predominantly expressed in visceral fat, not subcutaneous fat. And its expression correlates negatively with visceral fat mass. People with more visceral fat have higher baseline miR-375. Cold brings it down. The thermogenesis genes come up.

The genes involved — FABP4, FGF21, PPARGC1A, PRDM16 — are well-established players in the browning pathway. PPARGC1A (PGC-1 alpha) in particular is the master regulator of mitochondrial biogenesis. You'll find it upstream of nearly every adaptation we attribute to cold exposure, exercise, and fasting. Its appearance here confirms that miR-375 is sitting in a real and consequential pathway, not a peripheral one.

Cold doesn't just turn thermogenesis on. It appears to remove something that was keeping it switched off. That distinction matters enormously for how we think about the dose, the timing, and the chronic benefits of cold practice.

Where the Science Agrees — and Where It Gets Complicated

The broader literature on cold-induced browning is consistent on this: beige and brown adipocytes can be recruited from visceral fat depots, not just classical BAT sites. Single-cell sequencing studies have identified thermogenic progenitors in VAT. This paper's cellular experiments confirm that visceral pre-adipocytes respond differently to cold than subcutaneous ones — and miR-375 knockdown amplifies that response. The mechanism is plausible and well-supported.

Where it gets complicated is translation to practice. This was a controlled cold exposure study in 169 healthy individuals — not a year of cold plunging. The researchers observed miR-375 downregulation acutely. Whether chronic cold exposure maintains that suppression, or whether the body adapts and restores miR-375 levels over time, is an open question. Hormesis research suggests adaptation is likely. The signal weakens. Which would imply that cycling cold exposure — not daily, but two to four times per week — may preserve the stimulus better than daily immersion.

The Practical Take

If you carry central adiposity — visceral fat — this paper gives you a molecular rationale for cold exposure that goes beyond the generic "boosts metabolism" claim. Cold appears to specifically target the fat depot most associated with cardiovascular and metabolic risk, and it does so through a mechanism involving gene regulation, not just calorie burn. Two to three sessions per week, consistent and deliberate, is the dose most likely to maintain that signal without allowing full adaptation.

The Surprising Connection

What strikes me most is that miR-375 was first characterized in pancreatic beta cells, where it regulates insulin secretion. Its appearance here, in visceral fat, mediating thermogenesis, is not accidental. Visceral fat and pancreatic function are metabolically intertwined — visceral fat drives insulin resistance, and insulin resistance expands visceral fat. The fact that one microRNA sits at the intersection of both suggests a regulatory axis that cold exposure may be modulating more broadly than any single outcome measure captures. We're not just burning fat. We may be resetting the signaling environment that allowed it to accumulate in the first place.

miR375 is cold exposure sensitive and drives thermogenesis in visceral

Harnessing the Power of Cold: How Contrast Therapy Enhances Resilience and Recovery

The Science of Cold Exposure

Connecting Cold Exposure and Energy Expenditure

Practical Implications for Wellness Rituals

Key Takeaways

Related articles

Brown and beige fat in humans thermogenic adipocytes that control energy

LSD1 promotes oxidative metabolism of white adipose tissue

Loss of TLE3 Promotes Mitochondrial Program in Beige Adipocytes and Improves Glucose Metabolism