Well, that has yet to happen...usually it is the other way around. Back in
1850 Joseph Smith received revelation that tobacco was bad for the body
and thereby stated that we should cease its use.
>
>>The Mormons believe that Adam was the father of all mankind and that
>>Eve was the mother.
>
>How long ago did this happen? How did the human species survive the
>inevitable inbreeding?
>
We don't know that exactly but some in the church have said the 'fall'
occurred
about 6,000 years ago. Nobody knows for sure how long the Garden of Eden
was there prior to that (perhaps millions of years)...since Adam and Eve
were immortal until Eve took a bite
of the fruit from the tree of knowledge of good and evil.