You're not going to easily cure cancer, any more than you're going to easily cure human sexual behavior aberration!
It is built into our very genetics, for a species survival and adaptation reason!
It is not exact, in the age in which either strikes, because biological controls are not precise in age about anything. It is always a statistical distribution, with the average or statistical mean age of effective population limiting onset, set to what the species needs to survive.
And the individual's survival be damned in it all.
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