Human Core Body Temperature Limits Adaptability to Heat Stress
4,967 views · Published 5 August 2018 · 15:01 · Indexed 30 October 2026
Channel: Paul Beckwith · 2018 · News & Politics
Many people think that as global temperatures and humidity rises the human body will physically adapt to the new conditions. FALSE. Since human core body temperature is 37 C (98.6 F), with skin temperature a few degrees lower (35 C, 95 F) when air temperature reaches 35 C and humidity is 100% (known as wet-bulb temperature) the body no longer loses heat to the environment. Even at rest, the 100 Watts of metabolic heat produced by an adult human thus builds up in the body, raising core body temperature leading to heat exhaustion, heat stroke, and death. Other mammals, and birds have higher core body temperatures than humans, and thus may fare better. Please check out my other videos and my blog at http://paulbeckwith.net and consider donating to support this work. Thanks!!
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