Like How cells know that’s it’s right time to develop new kind of cell example responsible for more testosterone production. And if organism survival is only goal of life than why it get old and die.like just regenerate/replace old cells into new ?
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Why do we age? Our chromosomes have these little caps on them called telomeres. Telomeres are important for helping our cells divide and renew healthily. But every time your cells divide and renew, your Telomeres get a little shorter. Eventually they become so short and weak that your cells can no longer divide and renew, and the result is aging cells. It’s called the “telomere end replication problem.”
Why does this happen? It has to do with some sciencey chemicals called DNA polymerases that are above my level of understanding, but the broader takeaway is: It’s just how our faulty, imperfect human bodies behave.
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