1. Cheating Death

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. 11 May 2018. 36 min

As Bill breaks down the science of aging, his correspondents try bizarre beauty treatments and learn how spinach could transform organ transplants.

2. Surviving in a World Without Water

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. 11 May 2018. 41 min

Derek Muller discovers why Mexico City is sinking, Nazeem Hussain tests his desert survival skills, and Bill has a drink with a "water sommelier".

3. The Addiction Episode

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. 11 May 2018. 35 min

Bill explains how addiction changes the brain, comedian Maria Bamford shares her struggles, and Cara Santa Maria visits a research lab casino.

4. Recipes from the Future

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. 11 May 2018. 31 min

Karlie Kloss tours Japanese farms that grow produce without soil to save water and space. Back in the studio, Margaret Cho samples meat made in a lab.

5. Evolution: The Fact of Life

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. 11 May 2018. 40 min

In London, mutated mosquitos make a meal of Derek Muller. Comedian Paul F. Tompkins helps Bill burst a common myth about evolution.

6. What is Your Pet Really Thinking?

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. 11 May 2018. 33 min

Do dogs get depressed? Do monkeys like magic tricks? Bill and his guests explore animal behavior that's remarkably human