Cool Science: How Cooling Vests Work & When to Use Them – José Näf (Pt1)

What are the real differences between evaporative, phase-changing, electronic, and ice-based cooling vests? Why are athletes, firefighters, and even lab workers turning to these technologies?

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In this episode, Dr. Olli Tikkanen speaks with José Näf, co-founder of Duracool, to break down the science and real-life applications behind different cooling vest technologies. As global temperatures rise and performance demands increase, understanding these cooling systems becomes crucial in both sports and professional settings.

José explains the four main cooling vest technologies: evaporative, phase-changing materials, electronic cooling with fans, and traditional ice-based solutions. He highlights where each method fits best—from professional sports to protective lab gear—and discusses why evaporative cooling mimics the natural human sweating process, especially useful for those who cannot sweat. They also explore the scientific controversy around the post-exercise use of ice baths, and the true nature of "phase change" in cooling materials.

This is a quick but informative episode for researchers, athletes, and professionals interested in how technology helps regulate body temperature under extreme conditions.

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This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

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Explore our Wearables,  Experience sampling method (ESM), Sleep,  Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

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Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

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Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

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Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

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Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

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For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

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