EnviroPhys: Navigating Human Limits explores how the human body adapts to extreme environments. Hosted by Dr. Jim Davis, this podcast delves into the physiological responses to heat, cold, altitude, and weather stressors. Each episode highlights the integration of systems like the nervous, cardiovascular, and respiratory to maintain homeostasis. Whether you’re a student or curious learner, discover how the body rises to environmental challenges and thrives in demanding conditions.

EnviroPhys: Navigating Human Limits
Claim This Podcastby Dr. Jim Davis
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Podcast Overview
EnviroPhys: Navigating Human Limits explores how the human body adapts to extreme environments. Hosted by Dr. Jim Davis, this podcast delves into the physiological responses to heat, cold, altitude, and weather stressors. Each episode highlights the integration of systems like the nervous, cardiovascular, and respiratory to maintain homeostasis. Whether you’re a student or curious learner, discover how the body rises to environmental challenges and thrives in demanding conditions.
Language
🇺🇲
Publishing Since
1/7/2025
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Recent Episodes

April 15, 2025
Episode 37 - Microgravity - Part 3
<p>We wrap up the microgravity series by focusing on the <strong>countermeasures</strong> used to fight physiological decline in space. These include <strong>treadmill harnesses, cycling, resistive training</strong>, and <strong>pharmacological strategies</strong> like <strong>calcium, vitamin D, and bisphosphonates</strong>. We also discuss the <strong>challenges of returning to gravity</strong>, including <strong>orthostatic hypotension, weakness, and vestibular disorientation</strong>, as well as the <strong>long-term risks</strong> of extended missions. Finally, we explore <strong>future solutions</strong>, such as <strong>artificial gravity and gene-based therapies</strong>.</p>

April 15, 2025
Episode 36 - Microgravity - Part 2
<p>In this episode, we explore the <strong>long-term physiological effects of microgravity</strong>, focusing on the <strong>musculoskeletal, cardiovascular, and vestibular systems</strong>, as well as <strong>cognitive and psychological challenges</strong>. We discuss <strong>bone loss, muscle atrophy</strong>, reduced <strong>VO₂ max</strong>, and how the <strong>vestibular system malfunctions</strong> in space. The episode also touches on the <strong>impact of disrupted circadian rhythms</strong>, <strong>sensory overload</strong>, and emotional strain during long-duration missions.</p>

April 10, 2025
Episode 35 - Microgravity - Part 1
<p>This episode kicks off our discussion of <strong>space physiology</strong>, focusing on the body’s <strong>initial responses to microgravity</strong>. We examine the <strong>headward fluid shift</strong>, changes in <strong>cardiovascular dynamics</strong>, and the impact on the <strong>vestibular system</strong>, which contributes to <strong>motion sickness and sensory disorientation</strong>. We also touch on how <strong>plasma volume reduction</strong> and <strong>cardiac remodeling</strong> affect astronaut performance and challenges upon re-entry to gravity.</p>
37 total episodes available
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Frequently asked questions
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- What is EnviroPhys: Navigating Human Limits?
- How often does this podcast release new episodes?
This podcast updates daily.
- Where can I listen to this podcast?
This podcast is available on 4 platforms including Apple Podcasts, Spotify, and more. You can also use the RSS feed directly.
- Does this podcast accept guests?
Yes, this podcast regularly features guests.
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