Tvo and I disagreed on genetics; he bet on the fatality of genetics, also.
You may recall that my father, who died at age 93, and my mother, who
turns 93 in two more days and is fully operational, both outlived all
of their siblings. It is clear to me that diet, exercise and other
lifestyle choices have been the determining factors.
There is genetic predisposition and there are generational habits
that influence health. We can be aware of these and make adjustments.