Mxsmanic wrote in
:

Kidney stones are not a universal consequence of even chronic
dehydration. Individuals who develop them often seem to have a
predisposition to the condition, or other problems that encourage the
development of stones.

People who have a history of renal calculi should drink more water and
fluids, but those who have no such history need not take any
exceptional precautions.

Oh great! Now he's a doctor!

Where'd you learn all that?

The "Operation" game?