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Extreme swimming with the world's most dangerous jellyfish - Diana Nyad
In the 1970s, Diana Nyad set long-distance swim records that are still unbroken. Thirty years later, at 60, she attempted her longest swim yet, from Cuba to Florida. In this funny, powerful talk at TEDMED, she talks about how to prepare mentally to achieve an extreme dream, and asks: What will YOU do with your wild, precious life?
How I held my breath for 17 minutes - David Blaine
In this highly personal talk from TEDMED, magician and stuntman David Blaine describes what it took to hold his breath underwater for 17 minutes -- a world record (only two minutes shorter than this entire talk!) -- and what his often death-defying work means to him. Warning: do NOT try this at home.
A boat carrying 500 refugees sunk at sea. The story of two survivors - Melissa Fleming
Aboard an overloaded ship carrying more than 500 refugees, a young woman becomes an unlikely hero. This single, powerful story, told by Melissa Fleming of the UN's refugee agency, gives a human face to the sheer numbers of human beings trying to escape to better lives ... as the refugee ships keep coming ...
How I swam the North Pole - Lewis Pugh
Lewis Pugh talks about his record-breaking swim across the North Pole. He braved the icy waters (in a Speedo) to highlight the melting icecap. Watch for astonishing footage -- and some blunt commentary on the realities of supercold-water swims.