Why do our bodies get older, and why do we all eventually die of old age?
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Bigger picture, there’s an evolutionary advantage to keeping new generations rolling through. Humans live a long time because we take so long to mature and educate. But at the other extreme it’s better to have an influx of people with new ideas that to try to reeducate the old. Our lifespan is a compromise between the wisdom of the elderly and the innovation and adaptability of the young.
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