How is it that a 4yo kid and an 8yo kid look and behave so differently while a 21yo person might as well look and behave the same as someone who is 5-6 years older?
In: Biology
They’re still maturing. Post puberty at around the age of 18-21 you stop maturing, and basically would stay looking that way if it wasn’t for the effects of ageing. And ageing is a much slower process than maturing.
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