I don't get it. 
We used to be animals. We didn't know destilation of water or heating of the meat. Since then, I don't thing we could have possibly changed so much biologically.
Even if we count child bearing at the age of 15 and another 13 years of defending kids, That would put minimal required survivor age at 28.
How is it possible, that unfiltered water and raw meat can kill us now? And is that shit reversable?
@travis
Now that you mention it, I had a similar conversation with my sister today.
I recently learned, that in japan, people consume raw eggs. In here, it's taboo because of chance you might get salmonella. But some homeless people in here just got used to that virus, and are no longer affected. I guess it's realy just that simple.
