If in the past, life expectancy was 50ish, and is now expected to rise to 100, would this mean that signs of aging (grey hair, wrinkles, bones and muscles becoming weaker) would happen later in life at around 70-80?
In: Biology
Human aging has always progressed at the same rate. A few millenia are nowhere near enough for such profound biological changes to happen as a matter of evolution. We live so much longer nowadays because we get sick much less, and when we do we have access to massively better treatment.
It’s difficult to envision how aging might be slowed and the human *healthspan*, as it’s called, lengthened. Advances in technology might eventually allow it, to some degree, but anything more would just be wild speculation.
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