How does a scientist actually measure aging? That's a very good question, because it is hard to measure. For some er purposes, aging is just defined mathematically as the fact that your risk of death increases with age. But two 70 year olds are not necessarily biologically alike. So you could also sayrs such a thing as biological age,. It's how fit or how well functioning your body actually is. And there's been some suggestions about how to messur this biological age. One of them relis on something called epigenetics. Some people even call the biological clock - but i don't know what queeting is.
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Nicklas Brendborg is the young science writer making us rethink our understanding of the ageing process. He joins Helen Czerski, science communicator and broadcaster, to discuss his recent bestselling book: Jellyfish Age Backwards: Nature’s Secrets to Longevity.
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