Greetings!

My dad, who will be 78 next month, walks more and more like a drunken
sailor.  Over the last few years, he has seen a number of doctors, but
none of them has said either:  1) "Medical science doesn't know what
your problem is."  or  2) "This is what is going on with you."  If we
knew what was going on, our level of anxiety would drop, at least.

It seems that a lot of older people have trouble walking.  Is there a
list of 5 or 6 things to check?  In this age of microbiology, "You're
old" doesn't seem like an adequate answer.

                                  Thanks,

                                  BZ