So I read that he lived to be 950... How is this possible...?

Haxs

This is not a logical explanation. That's just stupid !

Genetics + food + environment were better back then.

The difference in genetics is unknown.The food probably was better.The environment is debateable. There would have been no real knowledge of medical ailments or cures though. I can't take this as a certainty.

Genes are constantly deterioateing, especially on the Y(male) chromosome.
Before the flood there was a layer of water in the atmosphere thats where the rain came from, if you look at the ages of people after the flood they are much shorter.

water canopy theory. ( where the flood came from )
google it

less radiation from the sun etc etc major greenhouse effect, more oxygen etc etc etcccc

lold

When you clone a mouse for example, that is already very old, the clone will have a much shorter lifespan.

Wouldn't everyone live to 950 then?