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Brains On! Science podcast for kids
If our bodies are 98 degrees, why does it feel so hot outside?
May 28, 2024
Dr. Joe Alcock, expert in understanding fevers, discusses how our bodies regulate temperature, why it feels hot outside, and the importance of fevers in fighting infections. The episode explores the role of the hypothalamus, sweating, blood circulation, and how animals use elevated temperatures for defense.
24:46
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Quick takeaways
- Our bodies maintain a temperature of 98 degrees internally through activities like blood circulation and cell functions, regulated by the hypothalamus for optimal functioning.
- Cooling off is achieved by pumping blood near the skin's surface to release heat and sweating for heat loss, but becomes challenging in temperatures exceeding 70 degrees, hindering effective heat dissipation.
Deep dives
The Brain's Control Room: Maintaining Body Temperature
Our bodies maintain a temperature of approximately 98 degrees Fahrenheit due to various internal activities like pumping blood, digesting food, and cell functions, which generate heat. The hypothalamus in the brain plays a crucial role in regulating body temperature through mechanisms like directing blood flow to the skin and stimulating sweating to cool off the body. When the body is balanced in its activities and temperature, it is in a state of homeostasis, ensuring optimal functioning.
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