TED Radio Hour Body Electric Part 1: The Body Through The Ages
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Oct 3, 2023 Explore the relationship between technology and the human body, how economic eras have shaped our bodies, the impact of excessive screen time, the evolution of the human body, the harmful consequences of limited exposure to green spaces, the negative effects of a sedentary lifestyle, and participate in a study on the impact of physical movement on the body.
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Galvani's Frog
- Luigi Galvani observed a dead frog's legs twitching when touched with a scalpel, leading him to propose "animal electricity".
- Alessandro Volta later proved that the twitching was caused by a circuit between dissimilar metals and a conductive solution, inventing the battery.
Body Adaptation
- Human bodies have adapted to different work and tools throughout history.
- The agricultural revolution led to a shift towards efficiency and less movement.
Industrial Age and Sitting
- Chairs became more common during the industrial age as sedentary work increased.
- Factory workers' lives were characterized by exhaustion and limited resources, leading to health problems.