[bmicraft]

AFAIK most cells can only divide a limited number of times, because the dna gets shorter with every copy. There is a finite bit of padding at the end (that you're born with) and once that's used up through too many copies, the cell can no longer divide (supposedly).

[journal]

but we can just make another human with new cell timespans? something doesn't add up. also, men without kids age slower but die early while men with kids age faster and live longer.