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How do tortoises defy ageing?

Scientists found Jonathan's DNA has chemical patterns on genes protecting his mitochondria that resemble those of much younger tortoises. Mitochondria are the 'powerhouses' of our cells, and protecting them from age-related damage could be key to a longer, healthier life, as seen in Jonathan's remarkable lifespan.

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

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