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How do mitochondria get damaged?

Mitochondria can be damaged by 'free radicals', unstable molecules produced during normal cell processes. These can harm mitochondrial DNA and proteins, affecting their ability to generate energy. Jonathan's research suggests his protective genes might help repair or prevent this damage, contributing to his remarkable longevity.

Stories that explain this

Secrets of a 194-Year-Old Tortoise's Long Life Revealed

Questions this opens up

What are free radicals? How do cells repair damage? What is mitochondrial DNA?

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What are mitochondria? Can we protect human mitochondria? What does DNA analysis show? Could humans live longer? How old is the oldest animal? How do tortoises defy ageing?

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