Why do pilots need a medical

Morgans wrote:

I think it was about 4 or so years. At one peak time, I passed 3 stones in
2 weeks. I then got one hung that had to be removed through surgery. THAT
really sucked. Yes, what you are thinking, is how they go in to remove one.

Ditto on the 3 in 2 weeks, never had any surgeries, that was a year ago...

No more tea and sodas for him in LA...

That was not my problem. They tell me there are two types of stones. One
of calcium, and one of the other type caused by tea and sodas. Mine were
the calcium type.

Ditto for that person...

I went to a urologist, and he had me do a 24 hour urine test, where all
output for a day went into a jug. It showed my body captured more of the
calcium that normally goes out with the urine. All I had to do was take a
diuretic (same thing some people take for blood pressure) to help keep the
kidneys flushed out. I haven't had a stone in close to ten years, or
coinciding with when I started the medication.

Well peanuts are bad too, getting them to quit peanuts is tough...