What's happening?

Beep-beep-beep! Bryan Johnson's alarm wakes him at 4.30am as usual. "I'm thirsty," he thinks. "I need a glass of water." But then he remembers - it can't be any old water. First he has to add 125 micrograms of liquid iodineA mineral found in some foods.. Then there are the eight drops of manganeseA hard, brittle metallic element. We need it in our bodies in small amounts. , and a teaspoon of cinnamon... and... and...

This is part of the routine Johnson has worked out with a team of 30 expertsSomeone who knows a lot about a particular subject..

The experts tell him what to eat and when. Two thirds of his meals are exactly the same: boiled cauliflower, broccoli, mushrooms, ginger, lentilsA very small dried bean which can be cooked and eaten. and garlic followed by a pudding of nuts, berries and seeds.

He drinks nothing after 4pm and goes to bed at 8.30pm. He says that at 46 he has the body of an 18-year-old - and believes he can live for ever.

He hopes others will follow his example, so he has started a movement called Don't Die.

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Johnson believes that AIA computer programme that has been designed to think.  may one day rule the wold. So, he says, it is more important than ever for humans to focus on staying alive as long as possible.

Are you tempted?

Yes! We should all try to be as healthy as possible. If we can stop getting older we can work together to solve the world's problems.

No! There is no point in living for ever if you are not having any fun. A diet of broccoli for the rest of your life sounds terrible!